18429808

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{821}}^1$

素因数の和:913

約数の個数: 40

約数和(自身を含む): 37917216

約数和(自身を除く): 19487408

約数列:

[1, 2, 4, 8, 16, 23, 46, 61, 92, 122, 184, 244, 368, 488, 821, 976, 1403, 1642, 2806, 3284, 5612, 6568, 11224, 13136, 18883, 22448, 37766, 50081, 75532, 100162, 151064, 200324, 302128, 400648, 801296, 1151863, 2303726, 4607452, 9214904, 18429808]

約数ペア:

[(1, 18429808), (2, 9214904), (4, 4607452), (8, 2303726), (16, 1151863), (23, 801296), (46, 400648), (61, 302128), (92, 200324), (122, 151064), (184, 100162), (244, 75532), (368, 50081), (488, 37766), (821, 22448), (976, 18883), (1403, 13136), (1642, 11224), (2806, 6568), (3284, 5612)]