20218585919

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{2111}}^1$

素因数の和:2292

約数の個数: 64

約数和(自身を含む): 26471301120

約数和(自身を除く): 6252715201

約数列:

[1, 7, 19, 23, 31, 101, 133, 161, 217, 437, 589, 707, 713, 1919, 2111, 2323, 3059, 3131, 4123, 4991, 13433, 13547, 14777, 16261, 21917, 40109, 44137, 48553, 59489, 65441, 72013, 94829, 213211, 280763, 308959, 339871, 416423, 458087, 504091, 922507, 1243379, 1368247, 1492477, 1505143, 4051009, 4903853, 6457549, 6609541, 8703653, 9577729, 10536001, 28357063, 28597717, 34326971, 46266787, 93173207, 125581279, 152019443, 200184019, 652212449, 879068953, 1064136101, 2888369417, 20218585919]

約数ペア:

[(1, 20218585919), (7, 2888369417), (19, 1064136101), (23, 879068953), (31, 652212449), (101, 200184019), (133, 152019443), (161, 125581279), (217, 93173207), (437, 46266787), (589, 34326971), (707, 28597717), (713, 28357063), (1919, 10536001), (2111, 9577729), (2323, 8703653), (3059, 6609541), (3131, 6457549), (4123, 4903853), (4991, 4051009), (13433, 1505143), (13547, 1492477), (14777, 1368247), (16261, 1243379), (21917, 922507), (40109, 504091), (44137, 458087), (48553, 416423), (59489, 339871), (65441, 308959), (72013, 280763), (94829, 213211)]