18999932

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 40115712

約数和(自身を除く): 21115780

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 163, 181, 322, 326, 362, 644, 652, 724, 1141, 1267, 2282, 2534, 3749, 4163, 4564, 5068, 7498, 8326, 14996, 16652, 26243, 29141, 29503, 52486, 58282, 59006, 104972, 116564, 118012, 206521, 413042, 678569, 826084, 1357138, 2714276, 4749983, 9499966, 18999932]

約数ペア:

[(1, 18999932), (2, 9499966), (4, 4749983), (7, 2714276), (14, 1357138), (23, 826084), (28, 678569), (46, 413042), (92, 206521), (161, 118012), (163, 116564), (181, 104972), (322, 59006), (326, 58282), (362, 52486), (644, 29503), (652, 29141), (724, 26243), (1141, 16652), (1267, 14996), (2282, 8326), (2534, 7498), (3749, 5068), (4163, 4564)]