19825468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{547}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 40600224

約数和(自身を除く): 20774756

約数列:

[1, 2, 4, 13, 17, 26, 34, 41, 52, 68, 82, 164, 221, 442, 533, 547, 697, 884, 1066, 1094, 1394, 2132, 2188, 2788, 7111, 9061, 9299, 14222, 18122, 18598, 22427, 28444, 36244, 37196, 44854, 89708, 120887, 241774, 291551, 381259, 483548, 583102, 762518, 1166204, 1525036, 4956367, 9912734, 19825468]

約数ペア:

[(1, 19825468), (2, 9912734), (4, 4956367), (13, 1525036), (17, 1166204), (26, 762518), (34, 583102), (41, 483548), (52, 381259), (68, 291551), (82, 241774), (164, 120887), (221, 89708), (442, 44854), (533, 37196), (547, 36244), (697, 28444), (884, 22427), (1066, 18598), (1094, 18122), (1394, 14222), (2132, 9299), (2188, 9061), (2788, 7111)]