20293884

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{421}}^1$

素因数の和:547

約数の個数: 72

約数和(自身を含む): 55913312

約数和(自身を除く): 35619428

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 103, 117, 156, 206, 234, 309, 412, 421, 468, 618, 842, 927, 1236, 1263, 1339, 1684, 1854, 2526, 2678, 3708, 3789, 4017, 5052, 5356, 5473, 7578, 8034, 10946, 12051, 15156, 16068, 16419, 21892, 24102, 32838, 43363, 48204, 49257, 65676, 86726, 98514, 130089, 173452, 197028, 260178, 390267, 520356, 563719, 780534, 1127438, 1561068, 1691157, 2254876, 3382314, 5073471, 6764628, 10146942, 20293884]

約数ペア:

[(1, 20293884), (2, 10146942), (3, 6764628), (4, 5073471), (6, 3382314), (9, 2254876), (12, 1691157), (13, 1561068), (18, 1127438), (26, 780534), (36, 563719), (39, 520356), (52, 390267), (78, 260178), (103, 197028), (117, 173452), (156, 130089), (206, 98514), (234, 86726), (309, 65676), (412, 49257), (421, 48204), (468, 43363), (618, 32838), (842, 24102), (927, 21892), (1236, 16419), (1263, 16068), (1339, 15156), (1684, 12051), (1854, 10946), (2526, 8034), (2678, 7578), (3708, 5473), (3789, 5356), (4017, 5052)]