20861904

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2141}}^1$

素因数の和:2188

約数の個数: 80

約数和(自身を含む): 63745920

約数和(自身を除く): 42884016

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 29, 42, 48, 56, 58, 84, 87, 112, 116, 168, 174, 203, 232, 336, 348, 406, 464, 609, 696, 812, 1218, 1392, 1624, 2141, 2436, 3248, 4282, 4872, 6423, 8564, 9744, 12846, 14987, 17128, 25692, 29974, 34256, 44961, 51384, 59948, 62089, 89922, 102768, 119896, 124178, 179844, 186267, 239792, 248356, 359688, 372534, 434623, 496712, 719376, 745068, 869246, 993424, 1303869, 1490136, 1738492, 2607738, 2980272, 3476984, 5215476, 6953968, 10430952, 20861904]

約数ペア:

[(1, 20861904), (2, 10430952), (3, 6953968), (4, 5215476), (6, 3476984), (7, 2980272), (8, 2607738), (12, 1738492), (14, 1490136), (16, 1303869), (21, 993424), (24, 869246), (28, 745068), (29, 719376), (42, 496712), (48, 434623), (56, 372534), (58, 359688), (84, 248356), (87, 239792), (112, 186267), (116, 179844), (168, 124178), (174, 119896), (203, 102768), (232, 89922), (336, 62089), (348, 59948), (406, 51384), (464, 44961), (609, 34256), (696, 29974), (812, 25692), (1218, 17128), (1392, 14987), (1624, 12846), (2141, 9744), (2436, 8564), (3248, 6423), (4282, 4872)]