21000470452

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{7477}}^1\times {\mathrm{54013}}^1$

素因数の和:61507

約数の個数: 24

約数和(自身を含む): 39583835816

約数和(自身を除く): 18583365364

約数列:

[1, 2, 4, 13, 26, 52, 7477, 14954, 29908, 54013, 97201, 108026, 194402, 216052, 388804, 702169, 1404338, 2808676, 403855201, 807710402, 1615420804, 5250117613, 10500235226, 21000470452]

約数ペア:

[(1, 21000470452), (2, 10500235226), (4, 5250117613), (13, 1615420804), (26, 807710402), (52, 403855201), (7477, 2808676), (14954, 1404338), (29908, 702169), (54013, 388804), (97201, 216052), (108026, 194402)]