21100996

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 22807484

約数列:

[1, 2, 4, 7, 14, 28, 53, 59, 106, 118, 212, 236, 241, 371, 413, 482, 742, 826, 964, 1484, 1652, 1687, 3127, 3374, 6254, 6748, 12508, 12773, 14219, 21889, 25546, 28438, 43778, 51092, 56876, 87556, 89411, 99533, 178822, 199066, 357644, 398132, 753607, 1507214, 3014428, 5275249, 10550498, 21100996]

約数ペア:

[(1, 21100996), (2, 10550498), (4, 5275249), (7, 3014428), (14, 1507214), (28, 753607), (53, 398132), (59, 357644), (106, 199066), (118, 178822), (212, 99533), (236, 89411), (241, 87556), (371, 56876), (413, 51092), (482, 43778), (742, 28438), (826, 25546), (964, 21889), (1484, 14219), (1652, 12773), (1687, 12508), (3127, 6748), (3374, 6254)]