21574566

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:518

約数の個数: 64

約数和(自身を含む): 52463040

約数和(自身を除く): 30888474

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 73, 78, 117, 146, 219, 234, 351, 421, 438, 657, 702, 842, 949, 1263, 1314, 1898, 1971, 2526, 2847, 3789, 3942, 5473, 5694, 7578, 8541, 10946, 11367, 16419, 17082, 22734, 25623, 30733, 32838, 49257, 51246, 61466, 92199, 98514, 147771, 184398, 276597, 295542, 399529, 553194, 799058, 829791, 1198587, 1659582, 2397174, 3595761, 7191522, 10787283, 21574566]

約数ペア:

[(1, 21574566), (2, 10787283), (3, 7191522), (6, 3595761), (9, 2397174), (13, 1659582), (18, 1198587), (26, 829791), (27, 799058), (39, 553194), (54, 399529), (73, 295542), (78, 276597), (117, 184398), (146, 147771), (219, 98514), (234, 92199), (351, 61466), (421, 51246), (438, 49257), (657, 32838), (702, 30733), (842, 25623), (949, 22734), (1263, 17082), (1314, 16419), (1898, 11367), (1971, 10946), (2526, 8541), (2847, 7578), (3789, 5694), (3942, 5473)]