21450090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{307}}^1$

素因数の和:471

約数の個数: 64

約数和(自身を含む): 55085184

約数和(自身を除く): 33635094

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 137, 170, 255, 274, 307, 411, 510, 614, 685, 822, 921, 1370, 1535, 1842, 2055, 2329, 3070, 4110, 4605, 4658, 5219, 6987, 9210, 10438, 11645, 13974, 15657, 23290, 26095, 31314, 34935, 42059, 52190, 69870, 78285, 84118, 126177, 156570, 210295, 252354, 420590, 630885, 715003, 1261770, 1430006, 2145009, 3575015, 4290018, 7150030, 10725045, 21450090]

約数ペア:

[(1, 21450090), (2, 10725045), (3, 7150030), (5, 4290018), (6, 3575015), (10, 2145009), (15, 1430006), (17, 1261770), (30, 715003), (34, 630885), (51, 420590), (85, 252354), (102, 210295), (137, 156570), (170, 126177), (255, 84118), (274, 78285), (307, 69870), (411, 52190), (510, 42059), (614, 34935), (685, 31314), (822, 26095), (921, 23290), (1370, 15657), (1535, 13974), (1842, 11645), (2055, 10438), (2329, 9210), (3070, 6987), (4110, 5219), (4605, 4658)]