21643648

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{13007}}^1$

素因数の和:13034

約数の個数: 32

約数和(自身を含む): 46438560

約数和(自身を除く): 24794912

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 13007, 26014, 52028, 104056, 169091, 208112, 338182, 416224, 676364, 832448, 1352728, 1664896, 2705456, 5410912, 10821824, 21643648]

約数ペア:

[(1, 21643648), (2, 10821824), (4, 5410912), (8, 2705456), (13, 1664896), (16, 1352728), (26, 832448), (32, 676364), (52, 416224), (64, 338182), (104, 208112), (128, 169091), (208, 104056), (416, 52028), (832, 26014), (1664, 13007)]