21663162495

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2\times {\mathrm{13183}}^1$

素因数の和:13313

約数の個数: 72

約数和(自身を含む): 41218404864

約数和(自身を除く): 19555242369

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 53, 65, 117, 159, 195, 265, 477, 585, 689, 795, 2067, 2385, 2809, 3445, 6201, 8427, 10335, 13183, 14045, 25281, 31005, 36517, 39549, 42135, 65915, 109551, 118647, 126405, 171379, 182585, 197745, 328653, 514137, 547755, 593235, 698699, 856895, 1542411, 1643265, 2096097, 2570685, 3493495, 6288291, 7712055, 9083087, 10480485, 27249261, 31441455, 37031047, 45415435, 81747783, 111093141, 136246305, 185155235, 333279423, 408738915, 481403611, 555465705, 1444210833, 1666397115, 2407018055, 4332632499, 7221054165, 21663162495]

約数ペア:

[(1, 21663162495), (3, 7221054165), (5, 4332632499), (9, 2407018055), (13, 1666397115), (15, 1444210833), (39, 555465705), (45, 481403611), (53, 408738915), (65, 333279423), (117, 185155235), (159, 136246305), (195, 111093141), (265, 81747783), (477, 45415435), (585, 37031047), (689, 31441455), (795, 27249261), (2067, 10480485), (2385, 9083087), (2809, 7712055), (3445, 6288291), (6201, 3493495), (8427, 2570685), (10335, 2096097), (13183, 1643265), (14045, 1542411), (25281, 856895), (31005, 698699), (36517, 593235), (39549, 547755), (42135, 514137), (65915, 328653), (109551, 197745), (118647, 182585), (126405, 171379)]