21392944

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{953}}^1$

素因数の和:1045

約数の個数: 40

約数和(自身を含む): 44006112

約数和(自身を除く): 22613168

約数列:

[1, 2, 4, 8, 16, 23, 46, 61, 92, 122, 184, 244, 368, 488, 953, 976, 1403, 1906, 2806, 3812, 5612, 7624, 11224, 15248, 21919, 22448, 43838, 58133, 87676, 116266, 175352, 232532, 350704, 465064, 930128, 1337059, 2674118, 5348236, 10696472, 21392944]

約数ペア:

[(1, 21392944), (2, 10696472), (4, 5348236), (8, 2674118), (16, 1337059), (23, 930128), (46, 465064), (61, 350704), (92, 232532), (122, 175352), (184, 116266), (244, 87676), (368, 58133), (488, 43838), (953, 22448), (976, 21919), (1403, 15248), (1906, 11224), (2806, 7624), (3812, 5612)]