21893750

素因数分解:

$2^1\times 5^5\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 42747264

約数和(自身を除く): 20853514

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 113, 125, 155, 226, 250, 310, 565, 625, 775, 1130, 1250, 1550, 2825, 3125, 3503, 3875, 5650, 6250, 7006, 7750, 14125, 17515, 19375, 28250, 35030, 38750, 70625, 87575, 96875, 141250, 175150, 193750, 353125, 437875, 706250, 875750, 2189375, 4378750, 10946875, 21893750]

約数ペア:

[(1, 21893750), (2, 10946875), (5, 4378750), (10, 2189375), (25, 875750), (31, 706250), (50, 437875), (62, 353125), (113, 193750), (125, 175150), (155, 141250), (226, 96875), (250, 87575), (310, 70625), (565, 38750), (625, 35030), (775, 28250), (1130, 19375), (1250, 17515), (1550, 14125), (2825, 7750), (3125, 7006), (3503, 6250), (3875, 5650)]