20881926

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{383}}^1$

素因数の和:637

約数の個数: 48

約数和(自身を含む): 49061376

約数和(自身を除く): 28179450

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 233, 234, 383, 466, 699, 766, 1149, 1398, 2097, 2298, 3029, 3447, 4194, 4979, 6058, 6894, 9087, 9958, 14937, 18174, 27261, 29874, 44811, 54522, 89239, 89622, 178478, 267717, 535434, 803151, 1160107, 1606302, 2320214, 3480321, 6960642, 10440963, 20881926]

約数ペア:

[(1, 20881926), (2, 10440963), (3, 6960642), (6, 3480321), (9, 2320214), (13, 1606302), (18, 1160107), (26, 803151), (39, 535434), (78, 267717), (117, 178478), (233, 89622), (234, 89239), (383, 54522), (466, 44811), (699, 29874), (766, 27261), (1149, 18174), (1398, 14937), (2097, 9958), (2298, 9087), (3029, 6894), (3447, 6058), (4194, 4979)]