21598220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{22039}}^1$

素因数の和:22062

約数の個数: 36

約数和(自身を含む): 52763760

約数和(自身を除く): 31165540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 22039, 44078, 88156, 110195, 154273, 220390, 308546, 440780, 617092, 771365, 1079911, 1542730, 2159822, 3085460, 4319644, 5399555, 10799110, 21598220]

約数ペア:

[(1, 21598220), (2, 10799110), (4, 5399555), (5, 4319644), (7, 3085460), (10, 2159822), (14, 1542730), (20, 1079911), (28, 771365), (35, 617092), (49, 440780), (70, 308546), (98, 220390), (140, 154273), (196, 110195), (245, 88156), (490, 44078), (980, 22039)]