21160568

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 47628000

約数和(自身を除く): 26467432

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 53, 88, 104, 106, 143, 212, 286, 349, 424, 572, 583, 689, 698, 1144, 1166, 1378, 1396, 2332, 2756, 2792, 3839, 4537, 4664, 5512, 7579, 7678, 9074, 15158, 15356, 18148, 18497, 30316, 30712, 36296, 36994, 49907, 60632, 73988, 99814, 147976, 199628, 203467, 240461, 399256, 406934, 480922, 813868, 961844, 1627736, 1923688, 2645071, 5290142, 10580284, 21160568]

約数ペア:

[(1, 21160568), (2, 10580284), (4, 5290142), (8, 2645071), (11, 1923688), (13, 1627736), (22, 961844), (26, 813868), (44, 480922), (52, 406934), (53, 399256), (88, 240461), (104, 203467), (106, 199628), (143, 147976), (212, 99814), (286, 73988), (349, 60632), (424, 49907), (572, 36994), (583, 36296), (689, 30712), (698, 30316), (1144, 18497), (1166, 18148), (1378, 15356), (1396, 15158), (2332, 9074), (2756, 7678), (2792, 7579), (3839, 5512), (4537, 4664)]