19933965

素因数分解:

$3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{991}}^1$

素因数の和:1154

約数の個数: 32

約数和(自身を含む): 35712000

約数和(自身を除く): 15778035

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149, 447, 745, 991, 1341, 2235, 2973, 4023, 4955, 6705, 8919, 14865, 20115, 26757, 44595, 133785, 147659, 442977, 738295, 1328931, 2214885, 3986793, 6644655, 19933965]

約数ペア:

[(1, 19933965), (3, 6644655), (5, 3986793), (9, 2214885), (15, 1328931), (27, 738295), (45, 442977), (135, 147659), (149, 133785), (447, 44595), (745, 26757), (991, 20115), (1341, 14865), (2235, 8919), (2973, 6705), (4023, 4955)]