20439378

素因数分解:

$2^1\times 3^4\times {\mathrm{281}}^1\times {\mathrm{449}}^1$

素因数の和:744

約数の個数: 40

約数和(自身を含む): 46064700

約数和(自身を除く): 25625322

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 281, 449, 562, 843, 898, 1347, 1686, 2529, 2694, 4041, 5058, 7587, 8082, 12123, 15174, 22761, 24246, 36369, 45522, 72738, 126169, 252338, 378507, 757014, 1135521, 2271042, 3406563, 6813126, 10219689, 20439378]

約数ペア:

[(1, 20439378), (2, 10219689), (3, 6813126), (6, 3406563), (9, 2271042), (18, 1135521), (27, 757014), (54, 378507), (81, 252338), (162, 126169), (281, 72738), (449, 45522), (562, 36369), (843, 24246), (898, 22761), (1347, 15174), (1686, 12123), (2529, 8082), (2694, 7587), (4041, 5058)]