291211984

素因数分解:

$2^4\times 7^1\times {\mathrm{821}}^1\times {\mathrm{3167}}^1$

素因数の和:4003

約数の個数: 40

約数和(自身を含む): 645815808

約数和(自身を除く): 354603824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 821, 1642, 3167, 3284, 5747, 6334, 6568, 11494, 12668, 13136, 22169, 22988, 25336, 44338, 45976, 50672, 88676, 91952, 177352, 354704, 2600107, 5200214, 10400428, 18200749, 20800856, 36401498, 41601712, 72802996, 145605992, 291211984]

約数ペア:

[(1, 291211984), (2, 145605992), (4, 72802996), (7, 41601712), (8, 36401498), (14, 20800856), (16, 18200749), (28, 10400428), (56, 5200214), (112, 2600107), (821, 354704), (1642, 177352), (3167, 91952), (3284, 88676), (5747, 50672), (6334, 45976), (6568, 44338), (11494, 25336), (12668, 22988), (13136, 22169)]