21000314608

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{848429}}^1$

素因数の和:848474

約数の個数: 80

約数和(自身を含む): 53023481280

約数和(自身を除く): 32023166672

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 52, 56, 68, 91, 104, 112, 119, 136, 182, 208, 221, 238, 272, 364, 442, 476, 728, 884, 952, 1456, 1547, 1768, 1904, 3094, 3536, 6188, 12376, 24752, 848429, 1696858, 3393716, 5939003, 6787432, 11029577, 11878006, 13574864, 14423293, 22059154, 23756012, 28846586, 44118308, 47512024, 57693172, 77207039, 88236616, 95024048, 100963051, 115386344, 154414078, 176473232, 187502809, 201926102, 230772688, 308828156, 375005618, 403852204, 617656312, 750011236, 807704408, 1235312624, 1312519663, 1500022472, 1615408816, 2625039326, 3000044944, 5250078652, 10500157304, 21000314608]

約数ペア:

[(1, 21000314608), (2, 10500157304), (4, 5250078652), (7, 3000044944), (8, 2625039326), (13, 1615408816), (14, 1500022472), (16, 1312519663), (17, 1235312624), (26, 807704408), (28, 750011236), (34, 617656312), (52, 403852204), (56, 375005618), (68, 308828156), (91, 230772688), (104, 201926102), (112, 187502809), (119, 176473232), (136, 154414078), (182, 115386344), (208, 100963051), (221, 95024048), (238, 88236616), (272, 77207039), (364, 57693172), (442, 47512024), (476, 44118308), (728, 28846586), (884, 23756012), (952, 22059154), (1456, 14423293), (1547, 13574864), (1768, 11878006), (1904, 11029577), (3094, 6787432), (3536, 5939003), (6188, 3393716), (12376, 1696858), (24752, 848429)]