21596708

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 45158400

約数和(自身を除く): 23561692

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 139, 179, 217, 278, 358, 434, 556, 716, 868, 973, 1253, 1946, 2506, 3892, 4309, 5012, 5549, 8618, 11098, 17236, 22196, 24881, 30163, 38843, 49762, 60326, 77686, 99524, 120652, 155372, 174167, 348334, 696668, 771311, 1542622, 3085244, 5399177, 10798354, 21596708]

約数ペア:

[(1, 21596708), (2, 10798354), (4, 5399177), (7, 3085244), (14, 1542622), (28, 771311), (31, 696668), (62, 348334), (124, 174167), (139, 155372), (179, 120652), (217, 99524), (278, 77686), (358, 60326), (434, 49762), (556, 38843), (716, 30163), (868, 24881), (973, 22196), (1253, 17236), (1946, 11098), (2506, 8618), (3892, 5549), (4309, 5012)]