15721930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{11821}}^1$

素因数の和:11854

約数の個数: 32

約数和(自身を含む): 34047360

約数和(自身を除く): 18325430

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 11821, 23642, 59105, 82747, 118210, 165494, 224599, 413735, 449198, 827470, 1122995, 1572193, 2245990, 3144386, 7860965, 15721930]

約数ペア:

[(1, 15721930), (2, 7860965), (5, 3144386), (7, 2245990), (10, 1572193), (14, 1122995), (19, 827470), (35, 449198), (38, 413735), (70, 224599), (95, 165494), (133, 118210), (190, 82747), (266, 59105), (665, 23642), (1330, 11821)]