21206510040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{67271}}^1$

素因数の和:67393

約数の個数: 128

約数和(自身を含む): 66260229120

約数和(自身を除く): 45053719080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 71, 74, 111, 120, 142, 148, 185, 213, 222, 284, 296, 355, 370, 426, 444, 555, 568, 710, 740, 852, 888, 1065, 1110, 1420, 1480, 1704, 2130, 2220, 2627, 2840, 4260, 4440, 5254, 7881, 8520, 10508, 13135, 15762, 21016, 26270, 31524, 39405, 52540, 63048, 67271, 78810, 105080, 134542, 157620, 201813, 269084, 315240, 336355, 403626, 538168, 672710, 807252, 1009065, 1345420, 1614504, 2018130, 2489027, 2690840, 4036260, 4776241, 4978054, 7467081, 8072520, 9552482, 9956108, 12445135, 14328723, 14934162, 19104964, 19912216, 23881205, 24890270, 28657446, 29868324, 37335405, 38209928, 47762410, 49780540, 57314892, 59736648, 71643615, 74670810, 95524820, 99561080, 114629784, 143287230, 149341620, 176720917, 191049640, 286574460, 298683240, 353441834, 530162751, 573148920, 706883668, 883604585, 1060325502, 1413767336, 1767209170, 2120651004, 2650813755, 3534418340, 4241302008, 5301627510, 7068836680, 10603255020, 21206510040]

約数ペア:

[(1, 21206510040), (2, 10603255020), (3, 7068836680), (4, 5301627510), (5, 4241302008), (6, 3534418340), (8, 2650813755), (10, 2120651004), (12, 1767209170), (15, 1413767336), (20, 1060325502), (24, 883604585), (30, 706883668), (37, 573148920), (40, 530162751), (60, 353441834), (71, 298683240), (74, 286574460), (111, 191049640), (120, 176720917), (142, 149341620), (148, 143287230), (185, 114629784), (213, 99561080), (222, 95524820), (284, 74670810), (296, 71643615), (355, 59736648), (370, 57314892), (426, 49780540), (444, 47762410), (555, 38209928), (568, 37335405), (710, 29868324), (740, 28657446), (852, 24890270), (888, 23881205), (1065, 19912216), (1110, 19104964), (1420, 14934162), (1480, 14328723), (1704, 12445135), (2130, 9956108), (2220, 9552482), (2627, 8072520), (2840, 7467081), (4260, 4978054), (4440, 4776241), (5254, 4036260), (7881, 2690840), (8520, 2489027), (10508, 2018130), (13135, 1614504), (15762, 1345420), (21016, 1009065), (26270, 807252), (31524, 672710), (39405, 538168), (52540, 403626), (63048, 336355), (67271, 315240), (78810, 269084), (105080, 201813), (134542, 157620)]