209831384

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{42101}}^1$

素因数の和:42203

約数の個数: 32

約数和(自身を含む): 454701600

約数和(自身を除く): 244870216

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4984, 42101, 84202, 168404, 294707, 336808, 589414, 1178828, 2357656, 3746989, 7493978, 14987956, 26228923, 29975912, 52457846, 104915692, 209831384]

約数ペア:

[(1, 209831384), (2, 104915692), (4, 52457846), (7, 29975912), (8, 26228923), (14, 14987956), (28, 7493978), (56, 3746989), (89, 2357656), (178, 1178828), (356, 589414), (623, 336808), (712, 294707), (1246, 168404), (2492, 84202), (4984, 42101)]