25128201

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 39564288

約数和(自身を除く): 14436087

約数列:

[1, 3, 7, 21, 53, 107, 159, 211, 321, 371, 633, 749, 1113, 1477, 2247, 4431, 5671, 11183, 17013, 22577, 33549, 39697, 67731, 78281, 119091, 158039, 234843, 474117, 1196581, 3589743, 8376067, 25128201]

約数ペア:

[(1, 25128201), (3, 8376067), (7, 3589743), (21, 1196581), (53, 474117), (107, 234843), (159, 158039), (211, 119091), (321, 78281), (371, 67731), (633, 39697), (749, 33549), (1113, 22577), (1477, 17013), (2247, 11183), (4431, 5671)]