21667140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:410

約数の個数: 144

約数和(自身を含む): 74221056

約数和(自身を除く): 52553916

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 31, 33, 36, 44, 45, 55, 60, 62, 66, 90, 93, 99, 110, 124, 132, 155, 165, 180, 186, 198, 220, 279, 310, 330, 341, 353, 372, 396, 465, 495, 558, 620, 660, 682, 706, 930, 990, 1023, 1059, 1116, 1364, 1395, 1412, 1705, 1765, 1860, 1980, 2046, 2118, 2790, 3069, 3177, 3410, 3530, 3883, 4092, 4236, 5115, 5295, 5580, 6138, 6354, 6820, 7060, 7766, 10230, 10590, 10943, 11649, 12276, 12708, 15345, 15532, 15885, 19415, 20460, 21180, 21886, 23298, 30690, 31770, 32829, 34947, 38830, 43772, 46596, 54715, 58245, 61380, 63540, 65658, 69894, 77660, 98487, 109430, 116490, 120373, 131316, 139788, 164145, 174735, 196974, 218860, 232980, 240746, 328290, 349470, 361119, 393948, 481492, 492435, 601865, 656580, 698940, 722238, 984870, 1083357, 1203730, 1444476, 1805595, 1969740, 2166714, 2407460, 3611190, 4333428, 5416785, 7222380, 10833570, 21667140]

約数ペア:

[(1, 21667140), (2, 10833570), (3, 7222380), (4, 5416785), (5, 4333428), (6, 3611190), (9, 2407460), (10, 2166714), (11, 1969740), (12, 1805595), (15, 1444476), (18, 1203730), (20, 1083357), (22, 984870), (30, 722238), (31, 698940), (33, 656580), (36, 601865), (44, 492435), (45, 481492), (55, 393948), (60, 361119), (62, 349470), (66, 328290), (90, 240746), (93, 232980), (99, 218860), (110, 196974), (124, 174735), (132, 164145), (155, 139788), (165, 131316), (180, 120373), (186, 116490), (198, 109430), (220, 98487), (279, 77660), (310, 69894), (330, 65658), (341, 63540), (353, 61380), (372, 58245), (396, 54715), (465, 46596), (495, 43772), (558, 38830), (620, 34947), (660, 32829), (682, 31770), (706, 30690), (930, 23298), (990, 21886), (1023, 21180), (1059, 20460), (1116, 19415), (1364, 15885), (1395, 15532), (1412, 15345), (1705, 12708), (1765, 12276), (1860, 11649), (1980, 10943), (2046, 10590), (2118, 10230), (2790, 7766), (3069, 7060), (3177, 6820), (3410, 6354), (3530, 6138), (3883, 5580), (4092, 5295), (4236, 5115)]