221464984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{547}}^1$

素因数の和:812

約数の個数: 64

約数和(自身を含む): 476431200

約数和(自身を除く): 254966216

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 229, 442, 458, 547, 884, 916, 1094, 1768, 1832, 2188, 2977, 3893, 4376, 5954, 7111, 7786, 9299, 11908, 14222, 15572, 18598, 23816, 28444, 31144, 37196, 50609, 56888, 74392, 101218, 120887, 125263, 202436, 241774, 250526, 404872, 483548, 501052, 967096, 1002104, 1628419, 2129471, 3256838, 4258942, 6513676, 8517884, 13027352, 17035768, 27683123, 55366246, 110732492, 221464984]

約数ペア:

[(1, 221464984), (2, 110732492), (4, 55366246), (8, 27683123), (13, 17035768), (17, 13027352), (26, 8517884), (34, 6513676), (52, 4258942), (68, 3256838), (104, 2129471), (136, 1628419), (221, 1002104), (229, 967096), (442, 501052), (458, 483548), (547, 404872), (884, 250526), (916, 241774), (1094, 202436), (1768, 125263), (1832, 120887), (2188, 101218), (2977, 74392), (3893, 56888), (4376, 50609), (5954, 37196), (7111, 31144), (7786, 28444), (9299, 23816), (11908, 18598), (14222, 15572)]