20889528

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1181}}^1$

素因数の和:1268

約数の個数: 64

約数和(自身を含む): 57870720

約数和(自身を除く): 36981192

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 67, 88, 132, 134, 201, 264, 268, 402, 536, 737, 804, 1181, 1474, 1608, 2211, 2362, 2948, 3543, 4422, 4724, 5896, 7086, 8844, 9448, 12991, 14172, 17688, 25982, 28344, 38973, 51964, 77946, 79127, 103928, 155892, 158254, 237381, 311784, 316508, 474762, 633016, 870397, 949524, 1740794, 1899048, 2611191, 3481588, 5222382, 6963176, 10444764, 20889528]

約数ペア:

[(1, 20889528), (2, 10444764), (3, 6963176), (4, 5222382), (6, 3481588), (8, 2611191), (11, 1899048), (12, 1740794), (22, 949524), (24, 870397), (33, 633016), (44, 474762), (66, 316508), (67, 311784), (88, 237381), (132, 158254), (134, 155892), (201, 103928), (264, 79127), (268, 77946), (402, 51964), (536, 38973), (737, 28344), (804, 25982), (1181, 17688), (1474, 14172), (1608, 12991), (2211, 9448), (2362, 8844), (2948, 7086), (3543, 5896), (4422, 4724)]