21821160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 69050880

約数和(自身を除く): 47229720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 53, 60, 73, 94, 106, 120, 141, 146, 159, 188, 212, 219, 235, 265, 282, 292, 318, 365, 376, 424, 438, 470, 530, 564, 584, 636, 705, 730, 795, 876, 940, 1060, 1095, 1128, 1272, 1410, 1460, 1590, 1752, 1880, 2120, 2190, 2491, 2820, 2920, 3180, 3431, 3869, 4380, 4982, 5640, 6360, 6862, 7473, 7738, 8760, 9964, 10293, 11607, 12455, 13724, 14946, 15476, 17155, 19345, 19928, 20586, 23214, 24910, 27448, 29892, 30952, 34310, 37365, 38690, 41172, 46428, 49820, 51465, 58035, 59784, 68620, 74730, 77380, 82344, 92856, 99640, 102930, 116070, 137240, 149460, 154760, 181843, 205860, 232140, 298920, 363686, 411720, 464280, 545529, 727372, 909215, 1091058, 1454744, 1818430, 2182116, 2727645, 3636860, 4364232, 5455290, 7273720, 10910580, 21821160]

約数ペア:

[(1, 21821160), (2, 10910580), (3, 7273720), (4, 5455290), (5, 4364232), (6, 3636860), (8, 2727645), (10, 2182116), (12, 1818430), (15, 1454744), (20, 1091058), (24, 909215), (30, 727372), (40, 545529), (47, 464280), (53, 411720), (60, 363686), (73, 298920), (94, 232140), (106, 205860), (120, 181843), (141, 154760), (146, 149460), (159, 137240), (188, 116070), (212, 102930), (219, 99640), (235, 92856), (265, 82344), (282, 77380), (292, 74730), (318, 68620), (365, 59784), (376, 58035), (424, 51465), (438, 49820), (470, 46428), (530, 41172), (564, 38690), (584, 37365), (636, 34310), (705, 30952), (730, 29892), (795, 27448), (876, 24910), (940, 23214), (1060, 20586), (1095, 19928), (1128, 19345), (1272, 17155), (1410, 15476), (1460, 14946), (1590, 13724), (1752, 12455), (1880, 11607), (2120, 10293), (2190, 9964), (2491, 8760), (2820, 7738), (2920, 7473), (3180, 6862), (3431, 6360), (3869, 5640), (4380, 4982)]