21240492

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:447

約数の個数: 96

約数和(自身を含む): 62318592

約数和(自身を除く): 41078100

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 53, 78, 84, 91, 106, 156, 159, 182, 212, 273, 318, 364, 367, 371, 546, 636, 689, 734, 742, 1092, 1101, 1113, 1378, 1468, 1484, 2067, 2202, 2226, 2569, 2756, 4134, 4404, 4452, 4771, 4823, 5138, 7707, 8268, 9542, 9646, 10276, 14313, 14469, 15414, 19084, 19292, 19451, 28626, 28938, 30828, 33397, 38902, 57252, 57876, 58353, 66794, 77804, 100191, 116706, 133588, 136157, 200382, 233412, 252863, 272314, 400764, 408471, 505726, 544628, 758589, 816942, 1011452, 1517178, 1633884, 1770041, 3034356, 3540082, 5310123, 7080164, 10620246, 21240492]

約数ペア:

[(1, 21240492), (2, 10620246), (3, 7080164), (4, 5310123), (6, 3540082), (7, 3034356), (12, 1770041), (13, 1633884), (14, 1517178), (21, 1011452), (26, 816942), (28, 758589), (39, 544628), (42, 505726), (52, 408471), (53, 400764), (78, 272314), (84, 252863), (91, 233412), (106, 200382), (156, 136157), (159, 133588), (182, 116706), (212, 100191), (273, 77804), (318, 66794), (364, 58353), (367, 57876), (371, 57252), (546, 38902), (636, 33397), (689, 30828), (734, 28938), (742, 28626), (1092, 19451), (1101, 19292), (1113, 19084), (1378, 15414), (1468, 14469), (1484, 14313), (2067, 10276), (2202, 9646), (2226, 9542), (2569, 8268), (2756, 7707), (4134, 5138), (4404, 4823), (4452, 4771)]