20796468

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:413

約数の個数: 96

約数和(自身を含む): 61544448

約数和(自身を除く): 40747980

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 71, 77, 84, 132, 142, 154, 213, 231, 284, 308, 317, 426, 462, 497, 634, 781, 852, 924, 951, 994, 1268, 1491, 1562, 1902, 1988, 2219, 2343, 2982, 3124, 3487, 3804, 4438, 4686, 5467, 5964, 6657, 6974, 8876, 9372, 10461, 10934, 13314, 13948, 16401, 20922, 21868, 22507, 24409, 26628, 32802, 41844, 45014, 48818, 65604, 67521, 73227, 90028, 97636, 135042, 146454, 157549, 247577, 270084, 292908, 315098, 472647, 495154, 630196, 742731, 945294, 990308, 1485462, 1733039, 1890588, 2970924, 3466078, 5199117, 6932156, 10398234, 20796468]

約数ペア:

[(1, 20796468), (2, 10398234), (3, 6932156), (4, 5199117), (6, 3466078), (7, 2970924), (11, 1890588), (12, 1733039), (14, 1485462), (21, 990308), (22, 945294), (28, 742731), (33, 630196), (42, 495154), (44, 472647), (66, 315098), (71, 292908), (77, 270084), (84, 247577), (132, 157549), (142, 146454), (154, 135042), (213, 97636), (231, 90028), (284, 73227), (308, 67521), (317, 65604), (426, 48818), (462, 45014), (497, 41844), (634, 32802), (781, 26628), (852, 24409), (924, 22507), (951, 21868), (994, 20922), (1268, 16401), (1491, 13948), (1562, 13314), (1902, 10934), (1988, 10461), (2219, 9372), (2343, 8876), (2982, 6974), (3124, 6657), (3487, 5964), (3804, 5467), (4438, 4686)]