21167339540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2146789}}^1$

素因数の和:2146844

約数の個数: 48

約数和(自身を含む): 48689197200

約数和(自身を除く): 27521857660

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 2465, 4930, 9860, 2146789, 4293578, 8587156, 10733945, 21467890, 36495413, 42935780, 62256881, 72990826, 124513762, 145981652, 182477065, 249027524, 311284405, 364954130, 622568810, 729908260, 1058366977, 1245137620, 2116733954, 4233467908, 5291834885, 10583669770, 21167339540]

約数ペア:

[(1, 21167339540), (2, 10583669770), (4, 5291834885), (5, 4233467908), (10, 2116733954), (17, 1245137620), (20, 1058366977), (29, 729908260), (34, 622568810), (58, 364954130), (68, 311284405), (85, 249027524), (116, 182477065), (145, 145981652), (170, 124513762), (290, 72990826), (340, 62256881), (493, 42935780), (580, 36495413), (986, 21467890), (1972, 10733945), (2465, 8587156), (4930, 4293578), (9860, 2146789)]