16801954

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:294

約数の個数: 32

約数和(自身を含む): 28168560

約数和(自身を除く): 11366606

約数列:

[1, 2, 13, 26, 53, 89, 106, 137, 178, 274, 689, 1157, 1378, 1781, 2314, 3562, 4717, 7261, 9434, 12193, 14522, 24386, 61321, 94393, 122642, 158509, 188786, 317018, 646229, 1292458, 8400977, 16801954]

約数ペア:

[(1, 16801954), (2, 8400977), (13, 1292458), (26, 646229), (53, 317018), (89, 188786), (106, 158509), (137, 122642), (178, 94393), (274, 61321), (689, 24386), (1157, 14522), (1378, 12193), (1781, 9434), (2314, 7261), (3562, 4717)]