21457944

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{373}}^1$

素因数の和:449

約数の個数: 96

約数和(自身を含む): 63011520

約数和(自身を除く): 41553576

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 47, 51, 68, 72, 94, 102, 136, 141, 153, 188, 204, 282, 306, 373, 376, 408, 423, 564, 612, 746, 799, 846, 1119, 1128, 1224, 1492, 1598, 1692, 2238, 2397, 2984, 3196, 3357, 3384, 4476, 4794, 6341, 6392, 6714, 7191, 8952, 9588, 12682, 13428, 14382, 17531, 19023, 19176, 25364, 26856, 28764, 35062, 38046, 50728, 52593, 57069, 57528, 70124, 76092, 105186, 114138, 140248, 152184, 157779, 210372, 228276, 298027, 315558, 420744, 456552, 596054, 631116, 894081, 1192108, 1262232, 1788162, 2384216, 2682243, 3576324, 5364486, 7152648, 10728972, 21457944]

約数ペア:

[(1, 21457944), (2, 10728972), (3, 7152648), (4, 5364486), (6, 3576324), (8, 2682243), (9, 2384216), (12, 1788162), (17, 1262232), (18, 1192108), (24, 894081), (34, 631116), (36, 596054), (47, 456552), (51, 420744), (68, 315558), (72, 298027), (94, 228276), (102, 210372), (136, 157779), (141, 152184), (153, 140248), (188, 114138), (204, 105186), (282, 76092), (306, 70124), (373, 57528), (376, 57069), (408, 52593), (423, 50728), (564, 38046), (612, 35062), (746, 28764), (799, 26856), (846, 25364), (1119, 19176), (1128, 19023), (1224, 17531), (1492, 14382), (1598, 13428), (1692, 12682), (2238, 9588), (2397, 8952), (2984, 7191), (3196, 6714), (3357, 6392), (3384, 6341), (4476, 4794)]