221437461

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{631}}^1\times {\mathrm{983}}^1$

素因数の和:1641

約数の個数: 32

約数和(自身を含む): 358207488

約数和(自身を除く): 136770027

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 631, 983, 1893, 2949, 4417, 6881, 10727, 13251, 16711, 20643, 32181, 50133, 75089, 116977, 225267, 350931, 620273, 1860819, 4341911, 10544641, 13025733, 31633923, 73812487, 221437461]

約数ペア:

[(1, 221437461), (3, 73812487), (7, 31633923), (17, 13025733), (21, 10544641), (51, 4341911), (119, 1860819), (357, 620273), (631, 350931), (983, 225267), (1893, 116977), (2949, 75089), (4417, 50133), (6881, 32181), (10727, 20643), (13251, 16711)]