20873538

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:333

約数の個数: 80

約数和(自身を含む): 54362880

約数和(自身を除く): 33489342

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 79, 81, 126, 158, 162, 189, 233, 237, 378, 466, 474, 553, 567, 699, 711, 1106, 1134, 1398, 1422, 1631, 1659, 2097, 2133, 3262, 3318, 4194, 4266, 4893, 4977, 6291, 6399, 9786, 9954, 12582, 12798, 14679, 14931, 18407, 18873, 29358, 29862, 36814, 37746, 44037, 44793, 55221, 88074, 89586, 110442, 128849, 132111, 165663, 257698, 264222, 331326, 386547, 496989, 773094, 993978, 1159641, 1490967, 2319282, 2981934, 3478923, 6957846, 10436769, 20873538]

約数ペア:

[(1, 20873538), (2, 10436769), (3, 6957846), (6, 3478923), (7, 2981934), (9, 2319282), (14, 1490967), (18, 1159641), (21, 993978), (27, 773094), (42, 496989), (54, 386547), (63, 331326), (79, 264222), (81, 257698), (126, 165663), (158, 132111), (162, 128849), (189, 110442), (233, 89586), (237, 88074), (378, 55221), (466, 44793), (474, 44037), (553, 37746), (567, 36814), (699, 29862), (711, 29358), (1106, 18873), (1134, 18407), (1398, 14931), (1422, 14679), (1631, 12798), (1659, 12582), (2097, 9954), (2133, 9786), (3262, 6399), (3318, 6291), (4194, 4977), (4266, 4893)]