21909750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 55351296

約数和(自身を除く): 33441546

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 131, 150, 223, 250, 262, 375, 393, 446, 655, 669, 750, 786, 1115, 1310, 1338, 1965, 2230, 3275, 3345, 3930, 5575, 6550, 6690, 9825, 11150, 16375, 16725, 19650, 27875, 29213, 32750, 33450, 49125, 55750, 58426, 83625, 87639, 98250, 146065, 167250, 175278, 292130, 438195, 730325, 876390, 1460650, 2190975, 3651625, 4381950, 7303250, 10954875, 21909750]

約数ペア:

[(1, 21909750), (2, 10954875), (3, 7303250), (5, 4381950), (6, 3651625), (10, 2190975), (15, 1460650), (25, 876390), (30, 730325), (50, 438195), (75, 292130), (125, 175278), (131, 167250), (150, 146065), (223, 98250), (250, 87639), (262, 83625), (375, 58426), (393, 55750), (446, 49125), (655, 33450), (669, 32750), (750, 29213), (786, 27875), (1115, 19650), (1310, 16725), (1338, 16375), (1965, 11150), (2230, 9825), (3275, 6690), (3345, 6550), (3930, 5575)]