31531402

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 57915648

約数和(自身を除く): 26384246

約数列:

[1, 2, 7, 14, 31, 49, 62, 97, 98, 107, 194, 214, 217, 434, 679, 749, 1358, 1498, 1519, 3007, 3038, 3317, 4753, 5243, 6014, 6634, 9506, 10379, 10486, 20758, 21049, 23219, 42098, 46438, 72653, 145306, 147343, 162533, 294686, 321749, 325066, 508571, 643498, 1017142, 2252243, 4504486, 15765701, 31531402]

約数ペア:

[(1, 31531402), (2, 15765701), (7, 4504486), (14, 2252243), (31, 1017142), (49, 643498), (62, 508571), (97, 325066), (98, 321749), (107, 294686), (194, 162533), (214, 147343), (217, 145306), (434, 72653), (679, 46438), (749, 42098), (1358, 23219), (1498, 21049), (1519, 20758), (3007, 10486), (3038, 10379), (3317, 9506), (4753, 6634), (5243, 6014)]