21167308784

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{4111}}^1$

素因数の和:4374

約数の個数: 80

約数和(自身を含む): 43173236736

約数和(自身を除く): 22005927952

約数列:

[1, 2, 4, 8, 16, 41, 47, 82, 94, 164, 167, 188, 328, 334, 376, 656, 668, 752, 1336, 1927, 2672, 3854, 4111, 6847, 7708, 7849, 8222, 13694, 15416, 15698, 16444, 27388, 30832, 31396, 32888, 54776, 62792, 65776, 109552, 125584, 168551, 193217, 321809, 337102, 386434, 643618, 674204, 686537, 772868, 1287236, 1348408, 1373074, 1545736, 2574472, 2696816, 2746148, 3091472, 5148944, 5492296, 7921897, 10984592, 15843794, 28148017, 31687588, 32267239, 56296034, 63375176, 64534478, 112592068, 126750352, 129068956, 225184136, 258137912, 450368272, 516275824, 1322956799, 2645913598, 5291827196, 10583654392, 21167308784]

約数ペア:

[(1, 21167308784), (2, 10583654392), (4, 5291827196), (8, 2645913598), (16, 1322956799), (41, 516275824), (47, 450368272), (82, 258137912), (94, 225184136), (164, 129068956), (167, 126750352), (188, 112592068), (328, 64534478), (334, 63375176), (376, 56296034), (656, 32267239), (668, 31687588), (752, 28148017), (1336, 15843794), (1927, 10984592), (2672, 7921897), (3854, 5492296), (4111, 5148944), (6847, 3091472), (7708, 2746148), (7849, 2696816), (8222, 2574472), (13694, 1545736), (15416, 1373074), (15698, 1348408), (16444, 1287236), (27388, 772868), (30832, 686537), (31396, 674204), (32888, 643618), (54776, 386434), (62792, 337102), (65776, 321809), (109552, 193217), (125584, 168551)]