18403484

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 36723456

約数和(自身を除く): 18319972

約数列:

[1, 2, 4, 11, 22, 43, 44, 71, 86, 137, 142, 172, 274, 284, 473, 548, 781, 946, 1507, 1562, 1892, 3014, 3053, 3124, 5891, 6028, 6106, 9727, 11782, 12212, 19454, 23564, 33583, 38908, 64801, 67166, 106997, 129602, 134332, 213994, 259204, 418261, 427988, 836522, 1673044, 4600871, 9201742, 18403484]

約数ペア:

[(1, 18403484), (2, 9201742), (4, 4600871), (11, 1673044), (22, 836522), (43, 427988), (44, 418261), (71, 259204), (86, 213994), (137, 134332), (142, 129602), (172, 106997), (274, 67166), (284, 64801), (473, 38908), (548, 33583), (781, 23564), (946, 19454), (1507, 12212), (1562, 11782), (1892, 9727), (3014, 6106), (3053, 6028), (3124, 5891)]