20662278

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:150

約数の個数: 96

約数和(自身を含む): 53125632

約数和(自身を除く): 32463354

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 41, 42, 71, 78, 82, 91, 123, 142, 169, 182, 213, 246, 273, 287, 338, 426, 497, 507, 533, 546, 574, 861, 923, 994, 1014, 1066, 1183, 1491, 1599, 1722, 1846, 2366, 2769, 2911, 2982, 3198, 3549, 3731, 5538, 5822, 6461, 6929, 7098, 7462, 8733, 11193, 11999, 12922, 13858, 17466, 19383, 20377, 20787, 22386, 23998, 35997, 37843, 38766, 40754, 41574, 48503, 61131, 71994, 75686, 83993, 97006, 113529, 122262, 145509, 167986, 227058, 251979, 264901, 291018, 491959, 503958, 529802, 794703, 983918, 1475877, 1589406, 2951754, 3443713, 6887426, 10331139, 20662278]

約数ペア:

[(1, 20662278), (2, 10331139), (3, 6887426), (6, 3443713), (7, 2951754), (13, 1589406), (14, 1475877), (21, 983918), (26, 794703), (39, 529802), (41, 503958), (42, 491959), (71, 291018), (78, 264901), (82, 251979), (91, 227058), (123, 167986), (142, 145509), (169, 122262), (182, 113529), (213, 97006), (246, 83993), (273, 75686), (287, 71994), (338, 61131), (426, 48503), (497, 41574), (507, 40754), (533, 38766), (546, 37843), (574, 35997), (861, 23998), (923, 22386), (994, 20787), (1014, 20377), (1066, 19383), (1183, 17466), (1491, 13858), (1599, 12922), (1722, 11999), (1846, 11193), (2366, 8733), (2769, 7462), (2911, 7098), (2982, 6929), (3198, 6461), (3549, 5822), (3731, 5538)]