21739424

素因数分解:

$2^5\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 52246656

約数和(自身を除く): 30507232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 43, 56, 61, 74, 86, 112, 122, 148, 172, 224, 244, 259, 296, 301, 344, 427, 488, 518, 592, 602, 688, 854, 976, 1036, 1184, 1204, 1376, 1591, 1708, 1952, 2072, 2257, 2408, 2623, 3182, 3416, 4144, 4514, 4816, 5246, 6364, 6832, 8288, 9028, 9632, 10492, 11137, 12728, 13664, 15799, 18056, 18361, 20984, 22274, 25456, 31598, 36112, 36722, 41968, 44548, 50912, 63196, 72224, 73444, 83936, 89096, 97051, 126392, 146888, 178192, 194102, 252784, 293776, 356384, 388204, 505568, 587552, 679357, 776408, 1358714, 1552816, 2717428, 3105632, 5434856, 10869712, 21739424]

約数ペア:

[(1, 21739424), (2, 10869712), (4, 5434856), (7, 3105632), (8, 2717428), (14, 1552816), (16, 1358714), (28, 776408), (32, 679357), (37, 587552), (43, 505568), (56, 388204), (61, 356384), (74, 293776), (86, 252784), (112, 194102), (122, 178192), (148, 146888), (172, 126392), (224, 97051), (244, 89096), (259, 83936), (296, 73444), (301, 72224), (344, 63196), (427, 50912), (488, 44548), (518, 41968), (592, 36722), (602, 36112), (688, 31598), (854, 25456), (976, 22274), (1036, 20984), (1184, 18361), (1204, 18056), (1376, 15799), (1591, 13664), (1708, 12728), (1952, 11137), (2072, 10492), (2257, 9632), (2408, 9028), (2623, 8288), (3182, 6832), (3416, 6364), (4144, 5246), (4514, 4816)]