21075936

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:496

約数の個数: 96

約数和(自身を含む): 64189440

約数和(自身を除く): 43113504

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 79, 84, 96, 112, 158, 168, 224, 237, 316, 336, 397, 474, 553, 632, 672, 794, 948, 1106, 1191, 1264, 1588, 1659, 1896, 2212, 2382, 2528, 2779, 3176, 3318, 3792, 4424, 4764, 5558, 6352, 6636, 7584, 8337, 8848, 9528, 11116, 12704, 13272, 16674, 17696, 19056, 22232, 26544, 31363, 33348, 38112, 44464, 53088, 62726, 66696, 88928, 94089, 125452, 133392, 188178, 219541, 250904, 266784, 376356, 439082, 501808, 658623, 752712, 878164, 1003616, 1317246, 1505424, 1756328, 2634492, 3010848, 3512656, 5268984, 7025312, 10537968, 21075936]

約数ペア:

[(1, 21075936), (2, 10537968), (3, 7025312), (4, 5268984), (6, 3512656), (7, 3010848), (8, 2634492), (12, 1756328), (14, 1505424), (16, 1317246), (21, 1003616), (24, 878164), (28, 752712), (32, 658623), (42, 501808), (48, 439082), (56, 376356), (79, 266784), (84, 250904), (96, 219541), (112, 188178), (158, 133392), (168, 125452), (224, 94089), (237, 88928), (316, 66696), (336, 62726), (397, 53088), (474, 44464), (553, 38112), (632, 33348), (672, 31363), (794, 26544), (948, 22232), (1106, 19056), (1191, 17696), (1264, 16674), (1588, 13272), (1659, 12704), (1896, 11116), (2212, 9528), (2382, 8848), (2528, 8337), (2779, 7584), (3176, 6636), (3318, 6352), (3792, 5558), (4424, 4764)]