31913235

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 57507840

約数和(自身を除く): 25594605

約数列:

[1, 3, 5, 9, 15, 45, 47, 79, 141, 191, 235, 237, 395, 423, 573, 705, 711, 955, 1185, 1719, 2115, 2865, 3555, 3713, 8595, 8977, 11139, 15089, 18565, 26931, 33417, 44885, 45267, 55695, 75445, 80793, 134655, 135801, 167085, 226335, 403965, 679005, 709183, 2127549, 3545915, 6382647, 10637745, 31913235]

約数ペア:

[(1, 31913235), (3, 10637745), (5, 6382647), (9, 3545915), (15, 2127549), (45, 709183), (47, 679005), (79, 403965), (141, 226335), (191, 167085), (235, 135801), (237, 134655), (395, 80793), (423, 75445), (573, 55695), (705, 45267), (711, 44885), (955, 33417), (1185, 26931), (1719, 18565), (2115, 15089), (2865, 11139), (3555, 8977), (3713, 8595)]