31513923

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 55111680

約数和(自身を除く): 23597757

約数列:

[1, 3, 7, 9, 21, 29, 47, 63, 87, 141, 203, 261, 329, 367, 423, 609, 987, 1101, 1363, 1827, 2569, 2961, 3303, 4089, 7707, 9541, 10643, 12267, 17249, 23121, 28623, 31929, 51747, 74501, 85869, 95787, 120743, 155241, 223503, 362229, 500221, 670509, 1086687, 1500663, 3501547, 4501989, 10504641, 31513923]

約数ペア:

[(1, 31513923), (3, 10504641), (7, 4501989), (9, 3501547), (21, 1500663), (29, 1086687), (47, 670509), (63, 500221), (87, 362229), (141, 223503), (203, 155241), (261, 120743), (329, 95787), (367, 85869), (423, 74501), (609, 51747), (987, 31929), (1101, 28623), (1363, 23121), (1827, 17249), (2569, 12267), (2961, 10643), (3303, 9541), (4089, 7707)]