18015972

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2179}}^1$

素因数の和:2252

約数の個数: 48

約数和(自身を含む): 46146240

約数和(自身を除く): 28130268

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 212, 318, 636, 689, 1378, 2067, 2179, 2756, 4134, 4358, 6537, 8268, 8716, 13074, 26148, 28327, 56654, 84981, 113308, 115487, 169962, 230974, 339924, 346461, 461948, 692922, 1385844, 1501331, 3002662, 4503993, 6005324, 9007986, 18015972]

約数ペア:

[(1, 18015972), (2, 9007986), (3, 6005324), (4, 4503993), (6, 3002662), (12, 1501331), (13, 1385844), (26, 692922), (39, 461948), (52, 346461), (53, 339924), (78, 230974), (106, 169962), (156, 115487), (159, 113308), (212, 84981), (318, 56654), (636, 28327), (689, 26148), (1378, 13074), (2067, 8716), (2179, 8268), (2756, 6537), (4134, 4358)]