21978904558

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7561}}^1\times {\mathrm{4861}}^1$

素因数の和:12460

約数の個数: 32

約数和(自身を含む): 37060575552

約数和(自身を除く): 15081670994

約数列:

[1, 2, 13, 23, 26, 46, 299, 598, 4861, 7561, 9722, 15122, 63193, 98293, 111803, 126386, 173903, 196586, 223606, 347806, 1453439, 2260739, 2906878, 4521478, 36754021, 73508042, 477802273, 845342483, 955604546, 1690684966, 10989452279, 21978904558]

約数ペア:

[(1, 21978904558), (2, 10989452279), (13, 1690684966), (23, 955604546), (26, 845342483), (46, 477802273), (299, 73508042), (598, 36754021), (4861, 4521478), (7561, 2906878), (9722, 2260739), (15122, 1453439), (63193, 347806), (98293, 223606), (111803, 196586), (126386, 173903)]