20663384

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 47139840

約数和(自身を除く): 26476456

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 61, 92, 122, 161, 184, 244, 263, 322, 427, 488, 526, 644, 854, 1052, 1288, 1403, 1708, 1841, 2104, 2806, 3416, 3682, 5612, 6049, 7364, 9821, 11224, 12098, 14728, 16043, 19642, 24196, 32086, 39284, 42343, 48392, 64172, 78568, 84686, 112301, 128344, 169372, 224602, 338744, 368989, 449204, 737978, 898408, 1475956, 2582923, 2951912, 5165846, 10331692, 20663384]

約数ペア:

[(1, 20663384), (2, 10331692), (4, 5165846), (7, 2951912), (8, 2582923), (14, 1475956), (23, 898408), (28, 737978), (46, 449204), (56, 368989), (61, 338744), (92, 224602), (122, 169372), (161, 128344), (184, 112301), (244, 84686), (263, 78568), (322, 64172), (427, 48392), (488, 42343), (526, 39284), (644, 32086), (854, 24196), (1052, 19642), (1288, 16043), (1403, 14728), (1708, 12098), (1841, 11224), (2104, 9821), (2806, 7364), (3416, 6049), (3682, 5612)]