19897888

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{463}}^1$

素因数の和:569

約数の個数: 48

約数和(自身を含む): 42094080

約数和(自身を除く): 22196192

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 79, 136, 158, 272, 316, 463, 544, 632, 926, 1264, 1343, 1852, 2528, 2686, 3704, 5372, 7408, 7871, 10744, 14816, 15742, 21488, 31484, 36577, 42976, 62968, 73154, 125936, 146308, 251872, 292616, 585232, 621809, 1170464, 1243618, 2487236, 4974472, 9948944, 19897888]

約数ペア:

[(1, 19897888), (2, 9948944), (4, 4974472), (8, 2487236), (16, 1243618), (17, 1170464), (32, 621809), (34, 585232), (68, 292616), (79, 251872), (136, 146308), (158, 125936), (272, 73154), (316, 62968), (463, 42976), (544, 36577), (632, 31484), (926, 21488), (1264, 15742), (1343, 14816), (1852, 10744), (2528, 7871), (2686, 7408), (3704, 5372)]