21395358

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{547}}^1$

素因数の和:649

約数の個数: 48

約数和(自身を含む): 48471696

約数和(自身を除く): 27076338

約数列:

[1, 2, 3, 6, 9, 18, 41, 53, 82, 106, 123, 159, 246, 318, 369, 477, 547, 738, 954, 1094, 1641, 2173, 3282, 4346, 4923, 6519, 9846, 13038, 19557, 22427, 28991, 39114, 44854, 57982, 67281, 86973, 134562, 173946, 201843, 260919, 403686, 521838, 1188631, 2377262, 3565893, 7131786, 10697679, 21395358]

約数ペア:

[(1, 21395358), (2, 10697679), (3, 7131786), (6, 3565893), (9, 2377262), (18, 1188631), (41, 521838), (53, 403686), (82, 260919), (106, 201843), (123, 173946), (159, 134562), (246, 86973), (318, 67281), (369, 57982), (477, 44854), (547, 39114), (738, 28991), (954, 22427), (1094, 19557), (1641, 13038), (2173, 9846), (3282, 6519), (4346, 4923)]