19363408

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{277}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 40021992

約数和(自身を除く): 20658584

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 257, 272, 277, 514, 554, 1028, 1108, 2056, 2216, 4112, 4369, 4432, 4709, 8738, 9418, 17476, 18836, 34952, 37672, 69904, 71189, 75344, 142378, 284756, 569512, 1139024, 1210213, 2420426, 4840852, 9681704, 19363408]

約数ペア:

[(1, 19363408), (2, 9681704), (4, 4840852), (8, 2420426), (16, 1210213), (17, 1139024), (34, 569512), (68, 284756), (136, 142378), (257, 75344), (272, 71189), (277, 69904), (514, 37672), (554, 34952), (1028, 18836), (1108, 17476), (2056, 9418), (2216, 8738), (4112, 4709), (4369, 4432)]