20347743

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 10295457

約数列:

[1, 3, 13, 37, 39, 59, 111, 177, 239, 481, 717, 767, 1443, 2183, 2301, 3107, 6549, 8843, 9321, 14101, 26529, 28379, 42303, 85137, 114959, 183313, 344877, 521737, 549939, 1565211, 6782581, 20347743]

約数ペア:

[(1, 20347743), (3, 6782581), (13, 1565211), (37, 549939), (39, 521737), (59, 344877), (111, 183313), (177, 114959), (239, 85137), (481, 42303), (717, 28379), (767, 26529), (1443, 14101), (2183, 9321), (2301, 8843), (3107, 6549)]