21539340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7039}}^1$

素因数の和:7071

約数の個数: 72

約数和(自身を含む): 69189120

約数和(自身を除く): 47649780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 7039, 14078, 21117, 28156, 35195, 42234, 63351, 70390, 84468, 105585, 119663, 126702, 140780, 211170, 239326, 253404, 316755, 358989, 422340, 478652, 598315, 633510, 717978, 1076967, 1196630, 1267020, 1435956, 1794945, 2153934, 2393260, 3589890, 4307868, 5384835, 7179780, 10769670, 21539340]

約数ペア:

[(1, 21539340), (2, 10769670), (3, 7179780), (4, 5384835), (5, 4307868), (6, 3589890), (9, 2393260), (10, 2153934), (12, 1794945), (15, 1435956), (17, 1267020), (18, 1196630), (20, 1076967), (30, 717978), (34, 633510), (36, 598315), (45, 478652), (51, 422340), (60, 358989), (68, 316755), (85, 253404), (90, 239326), (102, 211170), (153, 140780), (170, 126702), (180, 119663), (204, 105585), (255, 84468), (306, 70390), (340, 63351), (510, 42234), (612, 35195), (765, 28156), (1020, 21117), (1530, 14078), (3060, 7039)]