21358272

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:270

約数の個数: 112

約数和(自身を含む): 62585600

約数和(自身を除く): 41227328

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 43, 48, 52, 64, 78, 86, 96, 104, 129, 156, 172, 192, 199, 208, 258, 312, 344, 398, 416, 516, 559, 597, 624, 688, 796, 832, 1032, 1118, 1194, 1248, 1376, 1592, 1677, 2064, 2236, 2388, 2496, 2587, 2752, 3184, 3354, 4128, 4472, 4776, 5174, 6368, 6708, 7761, 8256, 8557, 8944, 9552, 10348, 12736, 13416, 15522, 17114, 17888, 19104, 20696, 25671, 26832, 31044, 34228, 35776, 38208, 41392, 51342, 53664, 62088, 68456, 82784, 102684, 107328, 111241, 124176, 136912, 165568, 205368, 222482, 248352, 273824, 333723, 410736, 444964, 496704, 547648, 667446, 821472, 889928, 1334892, 1642944, 1779856, 2669784, 3559712, 5339568, 7119424, 10679136, 21358272]

約数ペア:

[(1, 21358272), (2, 10679136), (3, 7119424), (4, 5339568), (6, 3559712), (8, 2669784), (12, 1779856), (13, 1642944), (16, 1334892), (24, 889928), (26, 821472), (32, 667446), (39, 547648), (43, 496704), (48, 444964), (52, 410736), (64, 333723), (78, 273824), (86, 248352), (96, 222482), (104, 205368), (129, 165568), (156, 136912), (172, 124176), (192, 111241), (199, 107328), (208, 102684), (258, 82784), (312, 68456), (344, 62088), (398, 53664), (416, 51342), (516, 41392), (559, 38208), (597, 35776), (624, 34228), (688, 31044), (796, 26832), (832, 25671), (1032, 20696), (1118, 19104), (1194, 17888), (1248, 17114), (1376, 15522), (1592, 13416), (1677, 12736), (2064, 10348), (2236, 9552), (2388, 8944), (2496, 8557), (2587, 8256), (2752, 7761), (3184, 6708), (3354, 6368), (4128, 5174), (4472, 4776)]