20881952

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:202

約数の個数: 96

約数和(自身を含む): 51819264

約数和(自身を除く): 30937312

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 71, 91, 101, 104, 112, 142, 182, 202, 208, 224, 284, 364, 404, 416, 497, 568, 707, 728, 808, 923, 994, 1136, 1313, 1414, 1456, 1616, 1846, 1988, 2272, 2626, 2828, 2912, 3232, 3692, 3976, 5252, 5656, 6461, 7171, 7384, 7952, 9191, 10504, 11312, 12922, 14342, 14768, 15904, 18382, 21008, 22624, 25844, 28684, 29536, 36764, 42016, 50197, 51688, 57368, 73528, 93223, 100394, 103376, 114736, 147056, 186446, 200788, 206752, 229472, 294112, 372892, 401576, 652561, 745784, 803152, 1305122, 1491568, 1606304, 2610244, 2983136, 5220488, 10440976, 20881952]

約数ペア:

[(1, 20881952), (2, 10440976), (4, 5220488), (7, 2983136), (8, 2610244), (13, 1606304), (14, 1491568), (16, 1305122), (26, 803152), (28, 745784), (32, 652561), (52, 401576), (56, 372892), (71, 294112), (91, 229472), (101, 206752), (104, 200788), (112, 186446), (142, 147056), (182, 114736), (202, 103376), (208, 100394), (224, 93223), (284, 73528), (364, 57368), (404, 51688), (416, 50197), (497, 42016), (568, 36764), (707, 29536), (728, 28684), (808, 25844), (923, 22624), (994, 21008), (1136, 18382), (1313, 15904), (1414, 14768), (1456, 14342), (1616, 12922), (1846, 11312), (1988, 10504), (2272, 9191), (2626, 7952), (2828, 7384), (2912, 7171), (3232, 6461), (3692, 5656), (3976, 5252)]