21471310

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1511}}^1$

素因数の和:1561

約数の個数: 48

約数和(自身を含む): 46539360

約数和(自身を除く): 25068050

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 49, 58, 70, 98, 145, 203, 245, 290, 406, 490, 1015, 1421, 1511, 2030, 2842, 3022, 7105, 7555, 10577, 14210, 15110, 21154, 43819, 52885, 74039, 87638, 105770, 148078, 219095, 306733, 370195, 438190, 613466, 740390, 1533665, 2147131, 3067330, 4294262, 10735655, 21471310]

約数ペア:

[(1, 21471310), (2, 10735655), (5, 4294262), (7, 3067330), (10, 2147131), (14, 1533665), (29, 740390), (35, 613466), (49, 438190), (58, 370195), (70, 306733), (98, 219095), (145, 148078), (203, 105770), (245, 87638), (290, 74039), (406, 52885), (490, 43819), (1015, 21154), (1421, 15110), (1511, 14210), (2030, 10577), (2842, 7555), (3022, 7105)]