21757770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{457}}^1$

素因数の和:516

約数の個数: 72

約数和(自身を含む): 59266116

約数和(自身を除く): 37508346

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 457, 529, 690, 914, 1035, 1058, 1371, 1587, 2070, 2285, 2645, 2742, 3174, 4113, 4570, 4761, 5290, 6855, 7935, 8226, 9522, 10511, 13710, 15870, 20565, 21022, 23805, 31533, 41130, 47610, 52555, 63066, 94599, 105110, 157665, 189198, 241753, 315330, 472995, 483506, 725259, 945990, 1208765, 1450518, 2175777, 2417530, 3626295, 4351554, 7252590, 10878885, 21757770]

約数ペア:

[(1, 21757770), (2, 10878885), (3, 7252590), (5, 4351554), (6, 3626295), (9, 2417530), (10, 2175777), (15, 1450518), (18, 1208765), (23, 945990), (30, 725259), (45, 483506), (46, 472995), (69, 315330), (90, 241753), (115, 189198), (138, 157665), (207, 105110), (230, 94599), (345, 63066), (414, 52555), (457, 47610), (529, 41130), (690, 31533), (914, 23805), (1035, 21022), (1058, 20565), (1371, 15870), (1587, 13710), (2070, 10511), (2285, 9522), (2645, 8226), (2742, 7935), (3174, 6855), (4113, 5290), (4570, 4761)]