15989955

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 26707968

約数和(自身を除く): 10718013

約数列:

[1, 3, 5, 15, 31, 93, 137, 155, 251, 411, 465, 685, 753, 1255, 2055, 3765, 4247, 7781, 12741, 21235, 23343, 34387, 38905, 63705, 103161, 116715, 171935, 515805, 1065997, 3197991, 5329985, 15989955]

約数ペア:

[(1, 15989955), (3, 5329985), (5, 3197991), (15, 1065997), (31, 515805), (93, 171935), (137, 116715), (155, 103161), (251, 63705), (411, 38905), (465, 34387), (685, 23343), (753, 21235), (1255, 12741), (2055, 7781), (3765, 4247)]