18747645

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1109}}^1$

素因数の和:1154

約数の個数: 48

約数和(自身を含む): 36443520

約数和(自身を除く): 17695875

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 49, 69, 105, 115, 147, 161, 245, 345, 483, 735, 805, 1109, 1127, 2415, 3327, 3381, 5545, 5635, 7763, 16635, 16905, 23289, 25507, 38815, 54341, 76521, 116445, 127535, 163023, 178549, 271705, 382605, 535647, 815115, 892745, 1249843, 2678235, 3749529, 6249215, 18747645]

約数ペア:

[(1, 18747645), (3, 6249215), (5, 3749529), (7, 2678235), (15, 1249843), (21, 892745), (23, 815115), (35, 535647), (49, 382605), (69, 271705), (105, 178549), (115, 163023), (147, 127535), (161, 116445), (245, 76521), (345, 54341), (483, 38815), (735, 25507), (805, 23289), (1109, 16905), (1127, 16635), (2415, 7763), (3327, 5635), (3381, 5545)]