21185820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39233}}^1$

素因数の和:39251

約数の個数: 48

約数和(自身を含む): 65913120

約数和(自身を除く): 44727300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39233, 78466, 117699, 156932, 196165, 235398, 353097, 392330, 470796, 588495, 706194, 784660, 1059291, 1176990, 1412388, 1765485, 2118582, 2353980, 3530970, 4237164, 5296455, 7061940, 10592910, 21185820]

約数ペア:

[(1, 21185820), (2, 10592910), (3, 7061940), (4, 5296455), (5, 4237164), (6, 3530970), (9, 2353980), (10, 2118582), (12, 1765485), (15, 1412388), (18, 1176990), (20, 1059291), (27, 784660), (30, 706194), (36, 588495), (45, 470796), (54, 392330), (60, 353097), (90, 235398), (108, 196165), (135, 156932), (180, 117699), (270, 78466), (540, 39233)]