213906448

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61609}}^1$

素因数の和:61655

約数の個数: 40

約数和(自身を含む): 488936960

約数和(自身を除く): 275030512

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 61609, 123218, 246436, 431263, 492872, 862526, 985744, 1725052, 1909879, 3450104, 3819758, 6900208, 7639516, 13369153, 15279032, 26738306, 30558064, 53476612, 106953224, 213906448]

約数ペア:

[(1, 213906448), (2, 106953224), (4, 53476612), (7, 30558064), (8, 26738306), (14, 15279032), (16, 13369153), (28, 7639516), (31, 6900208), (56, 3819758), (62, 3450104), (112, 1909879), (124, 1725052), (217, 985744), (248, 862526), (434, 492872), (496, 431263), (868, 246436), (1736, 123218), (3472, 61609)]