21878436

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{571}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 53301248

約数和(自身を除く): 31422812

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 103, 124, 186, 206, 309, 372, 412, 571, 618, 1142, 1236, 1713, 2284, 3193, 3426, 6386, 6852, 9579, 12772, 17701, 19158, 35402, 38316, 53103, 58813, 70804, 106206, 117626, 176439, 212412, 235252, 352878, 705756, 1823203, 3646406, 5469609, 7292812, 10939218, 21878436]

約数ペア:

[(1, 21878436), (2, 10939218), (3, 7292812), (4, 5469609), (6, 3646406), (12, 1823203), (31, 705756), (62, 352878), (93, 235252), (103, 212412), (124, 176439), (186, 117626), (206, 106206), (309, 70804), (372, 58813), (412, 53103), (571, 38316), (618, 35402), (1142, 19158), (1236, 17701), (1713, 12772), (2284, 9579), (3193, 6852), (3426, 6386)]