20890402

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{19597}}^1$

素因数の和:19653

約数の個数: 16

約数和(自身を含む): 34570872

約数和(自身を除く): 13680470

約数列:

[1, 2, 13, 26, 41, 82, 533, 1066, 19597, 39194, 254761, 509522, 803477, 1606954, 10445201, 20890402]

約数ペア:

[(1, 20890402), (2, 10445201), (13, 1606954), (26, 803477), (41, 509522), (82, 254761), (533, 39194), (1066, 19597)]