21531750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1511}}^1$

素因数の和:1550

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 35077530

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 50, 57, 75, 95, 114, 125, 150, 190, 250, 285, 375, 475, 570, 750, 950, 1425, 1511, 2375, 2850, 3022, 4533, 4750, 7125, 7555, 9066, 14250, 15110, 22665, 28709, 37775, 45330, 57418, 75550, 86127, 113325, 143545, 172254, 188875, 226650, 287090, 377750, 430635, 566625, 717725, 861270, 1133250, 1435450, 2153175, 3588625, 4306350, 7177250, 10765875, 21531750]

約数ペア:

[(1, 21531750), (2, 10765875), (3, 7177250), (5, 4306350), (6, 3588625), (10, 2153175), (15, 1435450), (19, 1133250), (25, 861270), (30, 717725), (38, 566625), (50, 430635), (57, 377750), (75, 287090), (95, 226650), (114, 188875), (125, 172254), (150, 143545), (190, 113325), (250, 86127), (285, 75550), (375, 57418), (475, 45330), (570, 37775), (750, 28709), (950, 22665), (1425, 15110), (1511, 14250), (2375, 9066), (2850, 7555), (3022, 7125), (4533, 4750)]