19368921

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 32044032

約数和(自身を除く): 12675111

約数列:

[1, 3, 11, 13, 23, 33, 39, 69, 143, 151, 169, 253, 299, 429, 453, 507, 759, 897, 1661, 1859, 1963, 3289, 3473, 3887, 4983, 5577, 5889, 9867, 10419, 11661, 21593, 25519, 38203, 42757, 45149, 64779, 76557, 114609, 128271, 135447, 280709, 496639, 586937, 842127, 1489917, 1760811, 6456307, 19368921]

約数ペア:

[(1, 19368921), (3, 6456307), (11, 1760811), (13, 1489917), (23, 842127), (33, 586937), (39, 496639), (69, 280709), (143, 135447), (151, 128271), (169, 114609), (253, 76557), (299, 64779), (429, 45149), (453, 42757), (507, 38203), (759, 25519), (897, 21593), (1661, 11661), (1859, 10419), (1963, 9867), (3289, 5889), (3473, 5577), (3887, 4983)]