28126581

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 44064000

約数和(自身を除く): 15937419

約数列:

[1, 3, 7, 21, 89, 101, 149, 267, 303, 447, 623, 707, 1043, 1869, 2121, 3129, 8989, 13261, 15049, 26967, 39783, 45147, 62923, 92827, 105343, 188769, 278481, 316029, 1339361, 4018083, 9375527, 28126581]

約数ペア:

[(1, 28126581), (3, 9375527), (7, 4018083), (21, 1339361), (89, 316029), (101, 278481), (149, 188769), (267, 105343), (303, 92827), (447, 62923), (623, 45147), (707, 39783), (1043, 26967), (1869, 15049), (2121, 13261), (3129, 8989)]