21395750

素因数分解:

$2^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{61}}^2$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 42490656

約数和(自身を除く): 21094906

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 61, 115, 122, 125, 230, 250, 305, 575, 610, 1150, 1403, 1525, 2806, 2875, 3050, 3721, 5750, 7015, 7442, 7625, 14030, 15250, 18605, 35075, 37210, 70150, 85583, 93025, 171166, 175375, 186050, 350750, 427915, 465125, 855830, 930250, 2139575, 4279150, 10697875, 21395750]

約数ペア:

[(1, 21395750), (2, 10697875), (5, 4279150), (10, 2139575), (23, 930250), (25, 855830), (46, 465125), (50, 427915), (61, 350750), (115, 186050), (122, 175375), (125, 171166), (230, 93025), (250, 85583), (305, 70150), (575, 37210), (610, 35075), (1150, 18605), (1403, 15250), (1525, 14030), (2806, 7625), (2875, 7442), (3050, 7015), (3721, 5750)]