20819128

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{659}}^1$

素因数の和:1035

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 21948872

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 359, 659, 718, 1318, 1436, 2636, 2872, 3949, 5272, 7249, 7898, 14498, 15796, 28996, 31592, 57992, 236581, 473162, 946324, 1892648, 2602391, 5204782, 10409564, 20819128]

約数ペア:

[(1, 20819128), (2, 10409564), (4, 5204782), (8, 2602391), (11, 1892648), (22, 946324), (44, 473162), (88, 236581), (359, 57992), (659, 31592), (718, 28996), (1318, 15796), (1436, 14498), (2636, 7898), (2872, 7249), (3949, 5272)]