19291818

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:511

約数の個数: 64

約数和(自身を含む): 48142080

約数和(自身を除く): 28850262

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 89, 91, 178, 182, 267, 273, 397, 534, 546, 623, 794, 1157, 1191, 1246, 1869, 2314, 2382, 2779, 3471, 3738, 5161, 5558, 6942, 8099, 8337, 10322, 15483, 16198, 16674, 24297, 30966, 35333, 36127, 48594, 70666, 72254, 105999, 108381, 211998, 216762, 247331, 459329, 494662, 741993, 918658, 1377987, 1483986, 2755974, 3215303, 6430606, 9645909, 19291818]

約数ペア:

[(1, 19291818), (2, 9645909), (3, 6430606), (6, 3215303), (7, 2755974), (13, 1483986), (14, 1377987), (21, 918658), (26, 741993), (39, 494662), (42, 459329), (78, 247331), (89, 216762), (91, 211998), (178, 108381), (182, 105999), (267, 72254), (273, 70666), (397, 48594), (534, 36127), (546, 35333), (623, 30966), (794, 24297), (1157, 16674), (1191, 16198), (1246, 15483), (1869, 10322), (2314, 8337), (2382, 8099), (2779, 6942), (3471, 5558), (3738, 5161)]