19681172

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{239}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 42094080

約数和(自身を除く): 22412908

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 173, 238, 239, 346, 476, 478, 692, 956, 1211, 1673, 2422, 2941, 3346, 4063, 4844, 5882, 6692, 8126, 11764, 16252, 20587, 28441, 41174, 41347, 56882, 82348, 82694, 113764, 165388, 289429, 578858, 702899, 1157716, 1405798, 2811596, 4920293, 9840586, 19681172]

約数ペア:

[(1, 19681172), (2, 9840586), (4, 4920293), (7, 2811596), (14, 1405798), (17, 1157716), (28, 702899), (34, 578858), (68, 289429), (119, 165388), (173, 113764), (238, 82694), (239, 82348), (346, 56882), (476, 41347), (478, 41174), (692, 28441), (956, 20587), (1211, 16252), (1673, 11764), (2422, 8126), (2941, 6692), (3346, 5882), (4063, 4844)]