21573132

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1931}}^1$

素因数の和:1971

約数の個数: 72

約数和(自身を含む): 61669440

約数和(自身を除く): 40096308

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 49, 57, 76, 84, 98, 114, 133, 147, 196, 228, 266, 294, 399, 532, 588, 798, 931, 1596, 1862, 1931, 2793, 3724, 3862, 5586, 5793, 7724, 11172, 11586, 13517, 23172, 27034, 36689, 40551, 54068, 73378, 81102, 94619, 110067, 146756, 162204, 189238, 220134, 256823, 283857, 378476, 440268, 513646, 567714, 770469, 1027292, 1135428, 1540938, 1797761, 3081876, 3595522, 5393283, 7191044, 10786566, 21573132]

約数ペア:

[(1, 21573132), (2, 10786566), (3, 7191044), (4, 5393283), (6, 3595522), (7, 3081876), (12, 1797761), (14, 1540938), (19, 1135428), (21, 1027292), (28, 770469), (38, 567714), (42, 513646), (49, 440268), (57, 378476), (76, 283857), (84, 256823), (98, 220134), (114, 189238), (133, 162204), (147, 146756), (196, 110067), (228, 94619), (266, 81102), (294, 73378), (399, 54068), (532, 40551), (588, 36689), (798, 27034), (931, 23172), (1596, 13517), (1862, 11586), (1931, 11172), (2793, 7724), (3724, 5793), (3862, 5586)]