21090030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3181}}^1$

素因数の和:3221

約数の個数: 64

約数和(自身を含む): 57734208

約数和(自身を除く): 36644178

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 221, 255, 390, 442, 510, 663, 1105, 1326, 2210, 3181, 3315, 6362, 6630, 9543, 15905, 19086, 31810, 41353, 47715, 54077, 82706, 95430, 108154, 124059, 162231, 206765, 248118, 270385, 324462, 413530, 540770, 620295, 703001, 811155, 1240590, 1406002, 1622310, 2109003, 3515005, 4218006, 7030010, 10545015, 21090030]

約数ペア:

[(1, 21090030), (2, 10545015), (3, 7030010), (5, 4218006), (6, 3515005), (10, 2109003), (13, 1622310), (15, 1406002), (17, 1240590), (26, 811155), (30, 703001), (34, 620295), (39, 540770), (51, 413530), (65, 324462), (78, 270385), (85, 248118), (102, 206765), (130, 162231), (170, 124059), (195, 108154), (221, 95430), (255, 82706), (390, 54077), (442, 47715), (510, 41353), (663, 31810), (1105, 19086), (1326, 15905), (2210, 9543), (3181, 6630), (3315, 6362)]