21049406980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1051}}^1\times {\mathrm{4933}}^1$

素因数の和:6029

約数の個数: 96

約数和(自身を含む): 52320925440

約数和(自身を除く): 31271518460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 1051, 2030, 2102, 4060, 4204, 4933, 5255, 7357, 9866, 10510, 14714, 19732, 21020, 24665, 29428, 30479, 34531, 36785, 49330, 60958, 69062, 73570, 98660, 121916, 138124, 143057, 147140, 152395, 172655, 213353, 286114, 304790, 345310, 426706, 572228, 609580, 690620, 715285, 853412, 1001399, 1066765, 1430570, 2002798, 2133530, 2861140, 4005596, 4267060, 5006995, 5184583, 10013990, 10369166, 20027980, 20738332, 25922915, 36292081, 51845830, 72584162, 103691660, 145168324, 150352907, 181460405, 300705814, 362920810, 601411628, 725841620, 751764535, 1052470349, 1503529070, 2104940698, 3007058140, 4209881396, 5262351745, 10524703490, 21049406980]

約数ペア:

[(1, 21049406980), (2, 10524703490), (4, 5262351745), (5, 4209881396), (7, 3007058140), (10, 2104940698), (14, 1503529070), (20, 1052470349), (28, 751764535), (29, 725841620), (35, 601411628), (58, 362920810), (70, 300705814), (116, 181460405), (140, 150352907), (145, 145168324), (203, 103691660), (290, 72584162), (406, 51845830), (580, 36292081), (812, 25922915), (1015, 20738332), (1051, 20027980), (2030, 10369166), (2102, 10013990), (4060, 5184583), (4204, 5006995), (4933, 4267060), (5255, 4005596), (7357, 2861140), (9866, 2133530), (10510, 2002798), (14714, 1430570), (19732, 1066765), (21020, 1001399), (24665, 853412), (29428, 715285), (30479, 690620), (34531, 609580), (36785, 572228), (49330, 426706), (60958, 345310), (69062, 304790), (73570, 286114), (98660, 213353), (121916, 172655), (138124, 152395), (143057, 147140)]