15861890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13109}}^1$

素因数の和:13138

約数の個数: 24

約数和(自身を含む): 31385340

約数和(自身を除く): 15523450

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 13109, 26218, 65545, 131090, 144199, 288398, 720995, 1441990, 1586189, 3172378, 7930945, 15861890]

約数ペア:

[(1, 15861890), (2, 7930945), (5, 3172378), (10, 1586189), (11, 1441990), (22, 720995), (55, 288398), (110, 144199), (121, 131090), (242, 65545), (605, 26218), (1210, 13109)]