21313090

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 39585024

約数和(自身を除く): 18271934

約数列:

[1, 2, 5, 10, 47, 94, 137, 235, 274, 331, 470, 662, 685, 1370, 1655, 3310, 6439, 12878, 15557, 31114, 32195, 45347, 64390, 77785, 90694, 155570, 226735, 453470, 2131309, 4262618, 10656545, 21313090]

約数ペア:

[(1, 21313090), (2, 10656545), (5, 4262618), (10, 2131309), (47, 453470), (94, 226735), (137, 155570), (235, 90694), (274, 77785), (331, 64390), (470, 45347), (662, 32195), (685, 31114), (1370, 15557), (1655, 12878), (3310, 6439)]