221697828

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:386

約数の個数: 144

約数和(自身を含む): 646918272

約数和(自身を除く): 425220444

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 23, 33, 36, 44, 46, 66, 69, 92, 99, 101, 132, 138, 198, 202, 207, 241, 253, 276, 303, 396, 404, 414, 482, 506, 606, 723, 759, 828, 909, 964, 1012, 1111, 1212, 1446, 1518, 1818, 2169, 2222, 2277, 2323, 2651, 2892, 3036, 3333, 3636, 4338, 4444, 4554, 4646, 5302, 5543, 6666, 6969, 7953, 8676, 9108, 9292, 9999, 10604, 11086, 13332, 13938, 15906, 16629, 19998, 20907, 22172, 23859, 24341, 25553, 27876, 31812, 33258, 39996, 41814, 47718, 48682, 49887, 51106, 60973, 66516, 73023, 76659, 83628, 95436, 97364, 99774, 102212, 121946, 146046, 153318, 182919, 199548, 219069, 229977, 243892, 267751, 292092, 306636, 365838, 438138, 459954, 535502, 548757, 559843, 731676, 803253, 876276, 919908, 1071004, 1097514, 1119686, 1606506, 1679529, 2195028, 2239372, 2409759, 3213012, 3359058, 4819518, 5038587, 6158273, 6718116, 9639036, 10077174, 12316546, 18474819, 20154348, 24633092, 36949638, 55424457, 73899276, 110848914, 221697828]

約数ペア:

[(1, 221697828), (2, 110848914), (3, 73899276), (4, 55424457), (6, 36949638), (9, 24633092), (11, 20154348), (12, 18474819), (18, 12316546), (22, 10077174), (23, 9639036), (33, 6718116), (36, 6158273), (44, 5038587), (46, 4819518), (66, 3359058), (69, 3213012), (92, 2409759), (99, 2239372), (101, 2195028), (132, 1679529), (138, 1606506), (198, 1119686), (202, 1097514), (207, 1071004), (241, 919908), (253, 876276), (276, 803253), (303, 731676), (396, 559843), (404, 548757), (414, 535502), (482, 459954), (506, 438138), (606, 365838), (723, 306636), (759, 292092), (828, 267751), (909, 243892), (964, 229977), (1012, 219069), (1111, 199548), (1212, 182919), (1446, 153318), (1518, 146046), (1818, 121946), (2169, 102212), (2222, 99774), (2277, 97364), (2323, 95436), (2651, 83628), (2892, 76659), (3036, 73023), (3333, 66516), (3636, 60973), (4338, 51106), (4444, 49887), (4554, 48682), (4646, 47718), (5302, 41814), (5543, 39996), (6666, 33258), (6969, 31812), (7953, 27876), (8676, 25553), (9108, 24341), (9292, 23859), (9999, 22172), (10604, 20907), (11086, 19998), (13332, 16629), (13938, 15906)]