19937970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17041}}^1$

素因数の和:17067

約数の個数: 48

約数和(自身を含む): 55829592

約数和(自身を除く): 35891622

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 17041, 34082, 51123, 85205, 102246, 153369, 170410, 221533, 255615, 306738, 443066, 511230, 664599, 766845, 1107665, 1329198, 1533690, 1993797, 2215330, 3322995, 3987594, 6645990, 9968985, 19937970]

約数ペア:

[(1, 19937970), (2, 9968985), (3, 6645990), (5, 3987594), (6, 3322995), (9, 2215330), (10, 1993797), (13, 1533690), (15, 1329198), (18, 1107665), (26, 766845), (30, 664599), (39, 511230), (45, 443066), (65, 306738), (78, 255615), (90, 221533), (117, 170410), (130, 153369), (195, 102246), (234, 85205), (390, 51123), (585, 34082), (1170, 17041)]