21020790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3229}}^1$

素因数の和:3277

約数の個数: 64

約数和(自身を含む): 59535360

約数和(自身を除く): 38514570

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3229, 3255, 6458, 6510, 9687, 16145, 19374, 22603, 32290, 45206, 48435, 67809, 96870, 100099, 113015, 135618, 200198, 226030, 300297, 339045, 500495, 600594, 678090, 700693, 1000990, 1401386, 1501485, 2102079, 3002970, 3503465, 4204158, 7006930, 10510395, 21020790]

約数ペア:

[(1, 21020790), (2, 10510395), (3, 7006930), (5, 4204158), (6, 3503465), (7, 3002970), (10, 2102079), (14, 1501485), (15, 1401386), (21, 1000990), (30, 700693), (31, 678090), (35, 600594), (42, 500495), (62, 339045), (70, 300297), (93, 226030), (105, 200198), (155, 135618), (186, 113015), (210, 100099), (217, 96870), (310, 67809), (434, 48435), (465, 45206), (651, 32290), (930, 22603), (1085, 19374), (1302, 16145), (2170, 9687), (3229, 6510), (3255, 6458)]