21821744

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:262

約数の個数: 80

約数和(自身を含む): 52193088

約数和(自身を除く): 30371344

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 73, 112, 119, 136, 146, 157, 238, 272, 292, 314, 476, 511, 584, 628, 952, 1022, 1099, 1168, 1241, 1256, 1904, 2044, 2198, 2482, 2512, 2669, 4088, 4396, 4964, 5338, 8176, 8687, 8792, 9928, 10676, 11461, 17374, 17584, 18683, 19856, 21352, 22922, 34748, 37366, 42704, 45844, 69496, 74732, 80227, 91688, 138992, 149464, 160454, 183376, 194837, 298928, 320908, 389674, 641816, 779348, 1283632, 1363859, 1558696, 2727718, 3117392, 5455436, 10910872, 21821744]

約数ペア:

[(1, 21821744), (2, 10910872), (4, 5455436), (7, 3117392), (8, 2727718), (14, 1558696), (16, 1363859), (17, 1283632), (28, 779348), (34, 641816), (56, 389674), (68, 320908), (73, 298928), (112, 194837), (119, 183376), (136, 160454), (146, 149464), (157, 138992), (238, 91688), (272, 80227), (292, 74732), (314, 69496), (476, 45844), (511, 42704), (584, 37366), (628, 34748), (952, 22922), (1022, 21352), (1099, 19856), (1168, 18683), (1241, 17584), (1256, 17374), (1904, 11461), (2044, 10676), (2198, 9928), (2482, 8792), (2512, 8687), (2669, 8176), (4088, 5338), (4396, 4964)]