21675306

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 48335616

約数和(自身を除く): 26660310

約数列:

[1, 2, 3, 6, 17, 34, 41, 51, 71, 73, 82, 102, 123, 142, 146, 213, 219, 246, 426, 438, 697, 1207, 1241, 1394, 2091, 2414, 2482, 2911, 2993, 3621, 3723, 4182, 5183, 5822, 5986, 7242, 7446, 8733, 8979, 10366, 15549, 17466, 17958, 31098, 49487, 50881, 88111, 98974, 101762, 148461, 152643, 176222, 212503, 264333, 296922, 305286, 425006, 528666, 637509, 1275018, 3612551, 7225102, 10837653, 21675306]

約数ペア:

[(1, 21675306), (2, 10837653), (3, 7225102), (6, 3612551), (17, 1275018), (34, 637509), (41, 528666), (51, 425006), (71, 305286), (73, 296922), (82, 264333), (102, 212503), (123, 176222), (142, 152643), (146, 148461), (213, 101762), (219, 98974), (246, 88111), (426, 50881), (438, 49487), (697, 31098), (1207, 17958), (1241, 17466), (1394, 15549), (2091, 10366), (2414, 8979), (2482, 8733), (2911, 7446), (2993, 7242), (3621, 5986), (3723, 5822), (4182, 5183)]