16531928

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 20792872

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 89, 107, 124, 178, 214, 217, 248, 356, 428, 434, 623, 712, 749, 856, 868, 1246, 1498, 1736, 2492, 2759, 2996, 3317, 4984, 5518, 5992, 6634, 9523, 11036, 13268, 19046, 19313, 22072, 23219, 26536, 38092, 38626, 46438, 66661, 76184, 77252, 92876, 133322, 154504, 185752, 266644, 295213, 533288, 590426, 1180852, 2066491, 2361704, 4132982, 8265964, 16531928]

約数ペア:

[(1, 16531928), (2, 8265964), (4, 4132982), (7, 2361704), (8, 2066491), (14, 1180852), (28, 590426), (31, 533288), (56, 295213), (62, 266644), (89, 185752), (107, 154504), (124, 133322), (178, 92876), (214, 77252), (217, 76184), (248, 66661), (356, 46438), (428, 38626), (434, 38092), (623, 26536), (712, 23219), (749, 22072), (856, 19313), (868, 19046), (1246, 13268), (1498, 11036), (1736, 9523), (2492, 6634), (2759, 5992), (2996, 5518), (3317, 4984)]