20353996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 19865204

約数列:

[1, 2, 4, 13, 26, 37, 52, 71, 74, 142, 148, 149, 284, 298, 481, 596, 923, 962, 1846, 1924, 1937, 2627, 3692, 3874, 5254, 5513, 7748, 10508, 10579, 11026, 21158, 22052, 34151, 42316, 68302, 71669, 136604, 137527, 143338, 275054, 286676, 391423, 550108, 782846, 1565692, 5088499, 10176998, 20353996]

約数ペア:

[(1, 20353996), (2, 10176998), (4, 5088499), (13, 1565692), (26, 782846), (37, 550108), (52, 391423), (71, 286676), (74, 275054), (142, 143338), (148, 137527), (149, 136604), (284, 71669), (298, 68302), (481, 42316), (596, 34151), (923, 22052), (962, 21158), (1846, 11026), (1924, 10579), (1937, 10508), (2627, 7748), (3692, 5513), (3874, 5254)]