21406502

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2549}}^1$

素因数の和:2600

約数の個数: 32

約数和(自身を含む): 38556000

約数和(自身を除く): 17149498

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 221, 247, 323, 442, 494, 646, 2549, 4199, 5098, 8398, 33137, 43333, 48431, 66274, 86666, 96862, 563329, 629603, 823327, 1126658, 1259206, 1646654, 10703251, 21406502]

約数ペア:

[(1, 21406502), (2, 10703251), (13, 1646654), (17, 1259206), (19, 1126658), (26, 823327), (34, 629603), (38, 563329), (221, 96862), (247, 86666), (323, 66274), (442, 48431), (494, 43333), (646, 33137), (2549, 8398), (4199, 5098)]