21309642

素因数分解:

$2^1\times 3^5\times {\mathrm{163}}^1\times {\mathrm{269}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 48353760

約数和(自身を除く): 27044118

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 163, 243, 269, 326, 486, 489, 538, 807, 978, 1467, 1614, 2421, 2934, 4401, 4842, 7263, 8802, 13203, 14526, 21789, 26406, 39609, 43578, 43847, 65367, 79218, 87694, 130734, 131541, 263082, 394623, 789246, 1183869, 2367738, 3551607, 7103214, 10654821, 21309642]

約数ペア:

[(1, 21309642), (2, 10654821), (3, 7103214), (6, 3551607), (9, 2367738), (18, 1183869), (27, 789246), (54, 394623), (81, 263082), (162, 131541), (163, 130734), (243, 87694), (269, 79218), (326, 65367), (486, 43847), (489, 43578), (538, 39609), (807, 26406), (978, 21789), (1467, 14526), (1614, 13203), (2421, 8802), (2934, 7263), (4401, 4842)]