21686670

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2591}}^1$

素因数の和:2638

約数の個数: 64

約数和(自身を含む): 59719680

約数和(自身を除く): 38033010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 90, 93, 135, 155, 186, 270, 279, 310, 465, 558, 837, 930, 1395, 1674, 2591, 2790, 4185, 5182, 7773, 8370, 12955, 15546, 23319, 25910, 38865, 46638, 69957, 77730, 80321, 116595, 139914, 160642, 233190, 240963, 349785, 401605, 481926, 699570, 722889, 803210, 1204815, 1445778, 2168667, 2409630, 3614445, 4337334, 7228890, 10843335, 21686670]

約数ペア:

[(1, 21686670), (2, 10843335), (3, 7228890), (5, 4337334), (6, 3614445), (9, 2409630), (10, 2168667), (15, 1445778), (18, 1204815), (27, 803210), (30, 722889), (31, 699570), (45, 481926), (54, 401605), (62, 349785), (90, 240963), (93, 233190), (135, 160642), (155, 139914), (186, 116595), (270, 80321), (279, 77730), (310, 69957), (465, 46638), (558, 38865), (837, 25910), (930, 23319), (1395, 15546), (1674, 12955), (2591, 8370), (2790, 7773), (4185, 5182)]