216950937

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1\times {\mathrm{641}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 337250304

約数和(自身を除く): 120299367

約数列:

[1, 3, 7, 21, 71, 213, 227, 497, 641, 681, 1491, 1589, 1923, 4487, 4767, 13461, 16117, 45511, 48351, 112819, 136533, 145507, 318577, 338457, 436521, 955731, 1018549, 3055647, 10330997, 30992991, 72316979, 216950937]

約数ペア:

[(1, 216950937), (3, 72316979), (7, 30992991), (21, 10330997), (71, 3055647), (213, 1018549), (227, 955731), (497, 436521), (641, 338457), (681, 318577), (1491, 145507), (1589, 136533), (1923, 112819), (4487, 48351), (4767, 45511), (13461, 16117)]