21347880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4339}}^1$

素因数の和:4394

約数の個数: 64

約数和(自身を含む): 65620800

約数和(自身を除く): 44272920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4339, 4920, 8678, 13017, 17356, 21695, 26034, 34712, 43390, 52068, 65085, 86780, 104136, 130170, 173560, 177899, 260340, 355798, 520680, 533697, 711596, 889495, 1067394, 1423192, 1778990, 2134788, 2668485, 3557980, 4269576, 5336970, 7115960, 10673940, 21347880]

約数ペア:

[(1, 21347880), (2, 10673940), (3, 7115960), (4, 5336970), (5, 4269576), (6, 3557980), (8, 2668485), (10, 2134788), (12, 1778990), (15, 1423192), (20, 1067394), (24, 889495), (30, 711596), (40, 533697), (41, 520680), (60, 355798), (82, 260340), (120, 177899), (123, 173560), (164, 130170), (205, 104136), (246, 86780), (328, 65085), (410, 52068), (492, 43390), (615, 34712), (820, 26034), (984, 21695), (1230, 17356), (1640, 13017), (2460, 8678), (4339, 4920)]