20992842

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:204

約数の個数: 72

約数和(自身を含む): 50472864

約数和(自身を除く): 29480022

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 67, 78, 103, 117, 134, 169, 201, 206, 234, 309, 338, 402, 507, 603, 618, 871, 927, 1014, 1206, 1339, 1521, 1742, 1854, 2613, 2678, 3042, 4017, 5226, 6901, 7839, 8034, 11323, 12051, 13802, 15678, 17407, 20703, 22646, 24102, 33969, 34814, 41406, 52221, 62109, 67938, 89713, 101907, 104442, 124218, 156663, 179426, 203814, 269139, 313326, 538278, 807417, 1166269, 1614834, 2332538, 3498807, 6997614, 10496421, 20992842]

約数ペア:

[(1, 20992842), (2, 10496421), (3, 6997614), (6, 3498807), (9, 2332538), (13, 1614834), (18, 1166269), (26, 807417), (39, 538278), (67, 313326), (78, 269139), (103, 203814), (117, 179426), (134, 156663), (169, 124218), (201, 104442), (206, 101907), (234, 89713), (309, 67938), (338, 62109), (402, 52221), (507, 41406), (603, 34814), (618, 33969), (871, 24102), (927, 22646), (1014, 20703), (1206, 17407), (1339, 15678), (1521, 13802), (1742, 12051), (1854, 11323), (2613, 8034), (2678, 7839), (3042, 6901), (4017, 5226)]