21550984

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4229}}^1$

素因数の和:4262

約数の個数: 48

約数和(自身を含む): 50633100

約数和(自身を除く): 29082116

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 4229, 5096, 8458, 16916, 29603, 33832, 54977, 59206, 109954, 118412, 207221, 219908, 236824, 384839, 414442, 439816, 769678, 828884, 1539356, 1657768, 2693873, 3078712, 5387746, 10775492, 21550984]

約数ペア:

[(1, 21550984), (2, 10775492), (4, 5387746), (7, 3078712), (8, 2693873), (13, 1657768), (14, 1539356), (26, 828884), (28, 769678), (49, 439816), (52, 414442), (56, 384839), (91, 236824), (98, 219908), (104, 207221), (182, 118412), (196, 109954), (364, 59206), (392, 54977), (637, 33832), (728, 29603), (1274, 16916), (2548, 8458), (4229, 5096)]