20996235

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1889}}^1$

素因数の和:1932

約数の個数: 48

約数和(自身を含む): 41277600

約数和(自身を除く): 20281365

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 585, 741, 855, 1235, 1889, 2223, 3705, 5667, 9445, 11115, 17001, 24557, 28335, 35891, 73671, 85005, 107673, 122785, 179455, 221013, 323019, 368355, 466583, 538365, 1105065, 1399749, 1615095, 2332915, 4199247, 6998745, 20996235]

約数ペア:

[(1, 20996235), (3, 6998745), (5, 4199247), (9, 2332915), (13, 1615095), (15, 1399749), (19, 1105065), (39, 538365), (45, 466583), (57, 368355), (65, 323019), (95, 221013), (117, 179455), (171, 122785), (195, 107673), (247, 85005), (285, 73671), (585, 35891), (741, 28335), (855, 24557), (1235, 17001), (1889, 11115), (2223, 9445), (3705, 5667)]