19987590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13597}}^1$

素因数の和:13621

約数の個数: 48

約数和(自身を含む): 55806192

約数和(自身を除く): 35818602

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13597, 27194, 40791, 67985, 81582, 95179, 135970, 190358, 203955, 285537, 407910, 475895, 571074, 666253, 951790, 1332506, 1427685, 1998759, 2855370, 3331265, 3997518, 6662530, 9993795, 19987590]

約数ペア:

[(1, 19987590), (2, 9993795), (3, 6662530), (5, 3997518), (6, 3331265), (7, 2855370), (10, 1998759), (14, 1427685), (15, 1332506), (21, 951790), (30, 666253), (35, 571074), (42, 475895), (49, 407910), (70, 285537), (98, 203955), (105, 190358), (147, 135970), (210, 95179), (245, 81582), (294, 67985), (490, 40791), (735, 27194), (1470, 13597)]