18859308

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2281}}^1$

素因数の和:2354

約数の個数: 48

約数和(自身を含む): 48305376

約数和(自身を除く): 29446068

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 212, 318, 636, 689, 1378, 2067, 2281, 2756, 4134, 4562, 6843, 8268, 9124, 13686, 27372, 29653, 59306, 88959, 118612, 120893, 177918, 241786, 355836, 362679, 483572, 725358, 1450716, 1571609, 3143218, 4714827, 6286436, 9429654, 18859308]

約数ペア:

[(1, 18859308), (2, 9429654), (3, 6286436), (4, 4714827), (6, 3143218), (12, 1571609), (13, 1450716), (26, 725358), (39, 483572), (52, 362679), (53, 355836), (78, 241786), (106, 177918), (156, 120893), (159, 118612), (212, 88959), (318, 59306), (636, 29653), (689, 27372), (1378, 13686), (2067, 9124), (2281, 8268), (2756, 6843), (4134, 4562)]