63771981

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{151}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 114156864

約数和(自身を除く): 50384883

約数列:

[1, 3, 7, 13, 17, 21, 39, 49, 51, 91, 119, 147, 151, 169, 221, 273, 357, 453, 507, 637, 663, 833, 1057, 1183, 1547, 1911, 1963, 2499, 2567, 2873, 3171, 3549, 4641, 5889, 7399, 7701, 8281, 8619, 10829, 13741, 17969, 20111, 22197, 24843, 25519, 32487, 33371, 41223, 53907, 60333, 76557, 96187, 100113, 125783, 140777, 178633, 233597, 288561, 377349, 422331, 433823, 535899, 700791, 1250431, 1301469, 1635179, 3036761, 3751293, 4905537, 9110283, 21257327, 63771981]

約数ペア:

[(1, 63771981), (3, 21257327), (7, 9110283), (13, 4905537), (17, 3751293), (21, 3036761), (39, 1635179), (49, 1301469), (51, 1250431), (91, 700791), (119, 535899), (147, 433823), (151, 422331), (169, 377349), (221, 288561), (273, 233597), (357, 178633), (453, 140777), (507, 125783), (637, 100113), (663, 96187), (833, 76557), (1057, 60333), (1183, 53907), (1547, 41223), (1911, 33371), (1963, 32487), (2499, 25519), (2567, 24843), (2873, 22197), (3171, 20111), (3549, 17969), (4641, 13741), (5889, 10829), (7399, 8619), (7701, 8281)]