21530898

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{397}}^1$

素因数の和:559

約数の個数: 48

約数和(自身を含む): 49173696

約数和(自身を除く): 27642798

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 131, 138, 207, 262, 393, 397, 414, 786, 794, 1179, 1191, 2358, 2382, 3013, 3573, 6026, 7146, 9039, 9131, 18078, 18262, 27117, 27393, 52007, 54234, 54786, 82179, 104014, 156021, 164358, 312042, 468063, 936126, 1196161, 2392322, 3588483, 7176966, 10765449, 21530898]

約数ペア:

[(1, 21530898), (2, 10765449), (3, 7176966), (6, 3588483), (9, 2392322), (18, 1196161), (23, 936126), (46, 468063), (69, 312042), (131, 164358), (138, 156021), (207, 104014), (262, 82179), (393, 54786), (397, 54234), (414, 52007), (786, 27393), (794, 27117), (1179, 18262), (1191, 18078), (2358, 9131), (2382, 9039), (3013, 7146), (3573, 6026)]