19742556

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1\times {\mathrm{307}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 48432384

約数和(自身を除く): 28689828

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 233, 276, 307, 466, 614, 699, 921, 932, 1228, 1398, 1842, 2796, 3684, 5359, 7061, 10718, 14122, 16077, 21183, 21436, 28244, 32154, 42366, 64308, 71531, 84732, 143062, 214593, 286124, 429186, 858372, 1645213, 3290426, 4935639, 6580852, 9871278, 19742556]

約数ペア:

[(1, 19742556), (2, 9871278), (3, 6580852), (4, 4935639), (6, 3290426), (12, 1645213), (23, 858372), (46, 429186), (69, 286124), (92, 214593), (138, 143062), (233, 84732), (276, 71531), (307, 64308), (466, 42366), (614, 32154), (699, 28244), (921, 21436), (932, 21183), (1228, 16077), (1398, 14122), (1842, 10718), (2796, 7061), (3684, 5359)]