21000508803

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{509}}^1\times {\mathrm{6521}}^1$

素因数の和:7092

約数の個数: 48

約数和(自身を含む): 32863053600

約数和(自身を除く): 11862544797

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 333, 509, 703, 1527, 2109, 4581, 6327, 6521, 9671, 18833, 19563, 29013, 56499, 58689, 87039, 123899, 169497, 241277, 357827, 371697, 723831, 1073481, 1115091, 2171493, 3220443, 3319189, 4584263, 9957567, 13752789, 29872701, 41258367, 63064591, 122809993, 189193773, 368429979, 567581319, 1105289937, 2333389867, 7000169601, 21000508803]

約数ペア:

[(1, 21000508803), (3, 7000169601), (9, 2333389867), (19, 1105289937), (37, 567581319), (57, 368429979), (111, 189193773), (171, 122809993), (333, 63064591), (509, 41258367), (703, 29872701), (1527, 13752789), (2109, 9957567), (4581, 4584263), (6327, 3319189), (6521, 3220443), (9671, 2171493), (18833, 1115091), (19563, 1073481), (29013, 723831), (56499, 371697), (58689, 357827), (87039, 241277), (123899, 169497)]