18893787

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 30234624

約数和(自身を除く): 11340837

約数列:

[1, 3, 11, 23, 31, 33, 69, 73, 93, 121, 219, 253, 341, 363, 713, 759, 803, 1023, 1679, 2139, 2263, 2409, 2783, 3751, 5037, 6789, 7843, 8349, 8833, 11253, 18469, 23529, 24893, 26499, 52049, 55407, 74679, 86273, 156147, 203159, 258819, 273823, 572539, 609477, 821469, 1717617, 6297929, 18893787]

約数ペア:

[(1, 18893787), (3, 6297929), (11, 1717617), (23, 821469), (31, 609477), (33, 572539), (69, 273823), (73, 258819), (93, 203159), (121, 156147), (219, 86273), (253, 74679), (341, 55407), (363, 52049), (713, 26499), (759, 24893), (803, 23529), (1023, 18469), (1679, 11253), (2139, 8833), (2263, 8349), (2409, 7843), (2783, 6789), (3751, 5037)]