20804956263

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{357787}}^1$

素因数の和:357884

約数の個数: 48

約数和(自身を含む): 37507631616

約数和(自身を除く): 16702675353

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 71, 91, 117, 213, 273, 497, 639, 819, 923, 1491, 2769, 4473, 6461, 8307, 19383, 58149, 357787, 1073361, 2504509, 3220083, 4651231, 7513527, 13953693, 22540581, 25402877, 32558617, 41861079, 76208631, 97675851, 177820139, 228625893, 293027553, 330237401, 533460417, 990712203, 1600381251, 2311661807, 2972136609, 6934985421, 20804956263]

約数ペア:

[(1, 20804956263), (3, 6934985421), (7, 2972136609), (9, 2311661807), (13, 1600381251), (21, 990712203), (39, 533460417), (63, 330237401), (71, 293027553), (91, 228625893), (117, 177820139), (213, 97675851), (273, 76208631), (497, 41861079), (639, 32558617), (819, 25402877), (923, 22540581), (1491, 13953693), (2769, 7513527), (4473, 4651231), (6461, 3220083), (8307, 2504509), (19383, 1073361), (58149, 357787)]