221665808

素因数分解:

$2^4\times 7^3\times {\mathrm{13}}^2\times {\mathrm{239}}^1$

素因数の和:294

約数の個数: 120

約数和(自身を含む): 544608000

約数和(自身を除く): 322942192

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 169, 182, 196, 208, 239, 338, 343, 364, 392, 478, 637, 676, 686, 728, 784, 956, 1183, 1274, 1352, 1372, 1456, 1673, 1912, 2366, 2548, 2704, 2744, 3107, 3346, 3824, 4459, 4732, 5096, 5488, 6214, 6692, 8281, 8918, 9464, 10192, 11711, 12428, 13384, 16562, 17836, 18928, 21749, 23422, 24856, 26768, 33124, 35672, 40391, 43498, 46844, 49712, 57967, 66248, 71344, 80782, 81977, 86996, 93688, 115934, 132496, 152243, 161564, 163954, 173992, 187376, 231868, 282737, 304486, 323128, 327908, 347984, 463736, 565474, 608972, 646256, 655816, 927472, 1065701, 1130948, 1217944, 1311632, 1979159, 2131402, 2261896, 2435888, 3958318, 4262804, 4523792, 7916636, 8525608, 13854113, 15833272, 17051216, 27708226, 31666544, 55416452, 110832904, 221665808]

約数ペア:

[(1, 221665808), (2, 110832904), (4, 55416452), (7, 31666544), (8, 27708226), (13, 17051216), (14, 15833272), (16, 13854113), (26, 8525608), (28, 7916636), (49, 4523792), (52, 4262804), (56, 3958318), (91, 2435888), (98, 2261896), (104, 2131402), (112, 1979159), (169, 1311632), (182, 1217944), (196, 1130948), (208, 1065701), (239, 927472), (338, 655816), (343, 646256), (364, 608972), (392, 565474), (478, 463736), (637, 347984), (676, 327908), (686, 323128), (728, 304486), (784, 282737), (956, 231868), (1183, 187376), (1274, 173992), (1352, 163954), (1372, 161564), (1456, 152243), (1673, 132496), (1912, 115934), (2366, 93688), (2548, 86996), (2704, 81977), (2744, 80782), (3107, 71344), (3346, 66248), (3824, 57967), (4459, 49712), (4732, 46844), (5096, 43498), (5488, 40391), (6214, 35672), (6692, 33124), (8281, 26768), (8918, 24856), (9464, 23422), (10192, 21749), (11711, 18928), (12428, 17836), (13384, 16562)]