21305102

素因数分解:

$2^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{2389}}^1$

素因数の和:2425

約数の個数: 32

約数和(自身を含む): 40152000

約数和(自身を除く): 18846898

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 343, 637, 686, 1274, 2389, 4459, 4778, 8918, 16723, 31057, 33446, 62114, 117061, 217399, 234122, 434798, 819427, 1521793, 1638854, 3043586, 10652551, 21305102]

約数ペア:

[(1, 21305102), (2, 10652551), (7, 3043586), (13, 1638854), (14, 1521793), (26, 819427), (49, 434798), (91, 234122), (98, 217399), (182, 117061), (343, 62114), (637, 33446), (686, 31057), (1274, 16723), (2389, 8918), (4459, 4778)]