20851930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{907}}^1$

素因数の和:955

約数の個数: 48

約数和(自身を含む): 43475040

約数和(自身を除く): 22623110

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 121, 190, 209, 242, 418, 605, 907, 1045, 1210, 1814, 2090, 2299, 4535, 4598, 9070, 9977, 11495, 17233, 19954, 22990, 34466, 49885, 86165, 99770, 109747, 172330, 189563, 219494, 379126, 548735, 947815, 1097470, 1895630, 2085193, 4170386, 10425965, 20851930]

約数ペア:

[(1, 20851930), (2, 10425965), (5, 4170386), (10, 2085193), (11, 1895630), (19, 1097470), (22, 947815), (38, 548735), (55, 379126), (95, 219494), (110, 189563), (121, 172330), (190, 109747), (209, 99770), (242, 86165), (418, 49885), (605, 34466), (907, 22990), (1045, 19954), (1210, 17233), (1814, 11495), (2090, 9977), (2299, 9070), (4535, 4598)]