20953552

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{587}}^1$

素因数の和:715

約数の個数: 40

約数和(自身を含む): 42872256

約数和(自身を除く): 21918704

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 97, 184, 194, 368, 388, 587, 776, 1174, 1552, 2231, 2348, 4462, 4696, 8924, 9392, 13501, 17848, 27002, 35696, 54004, 56939, 108008, 113878, 216016, 227756, 455512, 911024, 1309597, 2619194, 5238388, 10476776, 20953552]

約数ペア:

[(1, 20953552), (2, 10476776), (4, 5238388), (8, 2619194), (16, 1309597), (23, 911024), (46, 455512), (92, 227756), (97, 216016), (184, 113878), (194, 108008), (368, 56939), (388, 54004), (587, 35696), (776, 27002), (1174, 17848), (1552, 13501), (2231, 9392), (2348, 8924), (4462, 4696)]