21655212

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 58222080

約数和(自身を除く): 36566868

約数列:

[1, 2, 3, 4, 6, 12, 17, 19, 34, 37, 38, 51, 57, 68, 74, 76, 102, 111, 114, 148, 151, 204, 222, 228, 302, 323, 444, 453, 604, 629, 646, 703, 906, 969, 1258, 1292, 1406, 1812, 1887, 1938, 2109, 2516, 2567, 2812, 2869, 3774, 3876, 4218, 5134, 5587, 5738, 7548, 7701, 8436, 8607, 10268, 11174, 11476, 11951, 15402, 16761, 17214, 22348, 23902, 30804, 33522, 34428, 35853, 47804, 48773, 67044, 71706, 94979, 97546, 106153, 143412, 146319, 189958, 195092, 212306, 284937, 292638, 318459, 379916, 424612, 569874, 585276, 636918, 1139748, 1273836, 1804601, 3609202, 5413803, 7218404, 10827606, 21655212]

約数ペア:

[(1, 21655212), (2, 10827606), (3, 7218404), (4, 5413803), (6, 3609202), (12, 1804601), (17, 1273836), (19, 1139748), (34, 636918), (37, 585276), (38, 569874), (51, 424612), (57, 379916), (68, 318459), (74, 292638), (76, 284937), (102, 212306), (111, 195092), (114, 189958), (148, 146319), (151, 143412), (204, 106153), (222, 97546), (228, 94979), (302, 71706), (323, 67044), (444, 48773), (453, 47804), (604, 35853), (629, 34428), (646, 33522), (703, 30804), (906, 23902), (969, 22348), (1258, 17214), (1292, 16761), (1406, 15402), (1812, 11951), (1887, 11476), (1938, 11174), (2109, 10268), (2516, 8607), (2567, 8436), (2812, 7701), (2869, 7548), (3774, 5738), (3876, 5587), (4218, 5134)]