72428307

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1567}}^1$

素因数の和:1679

約数の個数: 32

約数和(自身を含む): 115605504

約数和(自身を除く): 43177197

約数列:

[1, 3, 7, 21, 31, 71, 93, 213, 217, 497, 651, 1491, 1567, 2201, 4701, 6603, 10969, 15407, 32907, 46221, 48577, 111257, 145731, 333771, 340039, 778799, 1020117, 2336397, 3448967, 10346901, 24142769, 72428307]

約数ペア:

[(1, 72428307), (3, 24142769), (7, 10346901), (21, 3448967), (31, 2336397), (71, 1020117), (93, 778799), (213, 340039), (217, 333771), (497, 145731), (651, 111257), (1491, 48577), (1567, 46221), (2201, 32907), (4701, 15407), (6603, 10969)]