20868804

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{349}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 58094400

約数和(自身を除く): 37225596

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 151, 198, 302, 349, 396, 453, 604, 698, 906, 1047, 1359, 1396, 1661, 1812, 2094, 2718, 3141, 3322, 3839, 4188, 4983, 5436, 6282, 6644, 7678, 9966, 11517, 12564, 14949, 15356, 19932, 23034, 29898, 34551, 46068, 52699, 59796, 69102, 105398, 138204, 158097, 210796, 316194, 474291, 579689, 632388, 948582, 1159378, 1739067, 1897164, 2318756, 3478134, 5217201, 6956268, 10434402, 20868804]

約数ペア:

[(1, 20868804), (2, 10434402), (3, 6956268), (4, 5217201), (6, 3478134), (9, 2318756), (11, 1897164), (12, 1739067), (18, 1159378), (22, 948582), (33, 632388), (36, 579689), (44, 474291), (66, 316194), (99, 210796), (132, 158097), (151, 138204), (198, 105398), (302, 69102), (349, 59796), (396, 52699), (453, 46068), (604, 34551), (698, 29898), (906, 23034), (1047, 19932), (1359, 15356), (1396, 14949), (1661, 12564), (1812, 11517), (2094, 9966), (2718, 7678), (3141, 6644), (3322, 6282), (3839, 5436), (4188, 4983)]