21296808

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{373}}^1$

素因数の和:459

約数の個数: 96

約数和(自身を含む): 63303240

約数和(自身を除く): 42006432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 61, 72, 78, 104, 117, 122, 156, 183, 234, 244, 312, 366, 373, 468, 488, 549, 732, 746, 793, 936, 1098, 1119, 1464, 1492, 1586, 2196, 2238, 2379, 2984, 3172, 3357, 4392, 4476, 4758, 4849, 6344, 6714, 7137, 8952, 9516, 9698, 13428, 14274, 14547, 19032, 19396, 22753, 26856, 28548, 29094, 38792, 43641, 45506, 57096, 58188, 68259, 87282, 91012, 116376, 136518, 174564, 182024, 204777, 273036, 295789, 349128, 409554, 546072, 591578, 819108, 887367, 1183156, 1638216, 1774734, 2366312, 2662101, 3549468, 5324202, 7098936, 10648404, 21296808]

約数ペア:

[(1, 21296808), (2, 10648404), (3, 7098936), (4, 5324202), (6, 3549468), (8, 2662101), (9, 2366312), (12, 1774734), (13, 1638216), (18, 1183156), (24, 887367), (26, 819108), (36, 591578), (39, 546072), (52, 409554), (61, 349128), (72, 295789), (78, 273036), (104, 204777), (117, 182024), (122, 174564), (156, 136518), (183, 116376), (234, 91012), (244, 87282), (312, 68259), (366, 58188), (373, 57096), (468, 45506), (488, 43641), (549, 38792), (732, 29094), (746, 28548), (793, 26856), (936, 22753), (1098, 19396), (1119, 19032), (1464, 14547), (1492, 14274), (1586, 13428), (2196, 9698), (2238, 9516), (2379, 8952), (2984, 7137), (3172, 6714), (3357, 6344), (4392, 4849), (4476, 4758)]