20555514

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:252

約数の個数: 96

約数和(自身を含む): 54722304

約数和(自身を除く): 34166790

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 41, 42, 46, 63, 69, 82, 123, 126, 138, 161, 173, 207, 246, 287, 322, 346, 369, 414, 483, 519, 574, 738, 861, 943, 966, 1038, 1211, 1449, 1557, 1722, 1886, 2422, 2583, 2829, 2898, 3114, 3633, 3979, 5166, 5658, 6601, 7093, 7266, 7958, 8487, 10899, 11937, 13202, 14186, 16974, 19803, 21279, 21798, 23874, 27853, 35811, 39606, 42558, 49651, 55706, 59409, 63837, 71622, 83559, 99302, 118818, 127674, 148953, 163139, 167118, 250677, 297906, 326278, 446859, 489417, 501354, 893718, 978834, 1141973, 1468251, 2283946, 2936502, 3425919, 6851838, 10277757, 20555514]

約数ペア:

[(1, 20555514), (2, 10277757), (3, 6851838), (6, 3425919), (7, 2936502), (9, 2283946), (14, 1468251), (18, 1141973), (21, 978834), (23, 893718), (41, 501354), (42, 489417), (46, 446859), (63, 326278), (69, 297906), (82, 250677), (123, 167118), (126, 163139), (138, 148953), (161, 127674), (173, 118818), (207, 99302), (246, 83559), (287, 71622), (322, 63837), (346, 59409), (369, 55706), (414, 49651), (483, 42558), (519, 39606), (574, 35811), (738, 27853), (861, 23874), (943, 21798), (966, 21279), (1038, 19803), (1211, 16974), (1449, 14186), (1557, 13202), (1722, 11937), (1886, 10899), (2422, 8487), (2583, 7958), (2829, 7266), (2898, 7093), (3114, 6601), (3633, 5658), (3979, 5166)]