21316554

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{56393}}^1$

素因数の和:56411

約数の個数: 32

約数和(自身を含む): 54138240

約数和(自身を除く): 32821686

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 56393, 112786, 169179, 338358, 394751, 507537, 789502, 1015074, 1184253, 1522611, 2368506, 3045222, 3552759, 7105518, 10658277, 21316554]

約数ペア:

[(1, 21316554), (2, 10658277), (3, 7105518), (6, 3552759), (7, 3045222), (9, 2368506), (14, 1522611), (18, 1184253), (21, 1015074), (27, 789502), (42, 507537), (54, 394751), (63, 338358), (126, 169179), (189, 112786), (378, 56393)]