21993930

素因数分解:

$2^1\times 3^6\times 5^1\times 7^1\times {\mathrm{431}}^1$

素因数の和:463

約数の個数: 112

約数和(自身を含む): 67993344

約数和(自身を除く): 45999414

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 243, 270, 315, 378, 405, 431, 486, 567, 630, 729, 810, 862, 945, 1134, 1215, 1293, 1458, 1701, 1890, 2155, 2430, 2586, 2835, 3017, 3402, 3645, 3879, 4310, 5103, 5670, 6034, 6465, 7290, 7758, 8505, 9051, 10206, 11637, 12930, 15085, 17010, 18102, 19395, 23274, 25515, 27153, 30170, 34911, 38790, 45255, 51030, 54306, 58185, 69822, 81459, 90510, 104733, 116370, 135765, 162918, 174555, 209466, 244377, 271530, 314199, 349110, 407295, 488754, 523665, 628398, 733131, 814590, 1047330, 1221885, 1466262, 1570995, 2199393, 2443770, 3141990, 3665655, 4398786, 7331310, 10996965, 21993930]

約数ペア:

[(1, 21993930), (2, 10996965), (3, 7331310), (5, 4398786), (6, 3665655), (7, 3141990), (9, 2443770), (10, 2199393), (14, 1570995), (15, 1466262), (18, 1221885), (21, 1047330), (27, 814590), (30, 733131), (35, 628398), (42, 523665), (45, 488754), (54, 407295), (63, 349110), (70, 314199), (81, 271530), (90, 244377), (105, 209466), (126, 174555), (135, 162918), (162, 135765), (189, 116370), (210, 104733), (243, 90510), (270, 81459), (315, 69822), (378, 58185), (405, 54306), (431, 51030), (486, 45255), (567, 38790), (630, 34911), (729, 30170), (810, 27153), (862, 25515), (945, 23274), (1134, 19395), (1215, 18102), (1293, 17010), (1458, 15085), (1701, 12930), (1890, 11637), (2155, 10206), (2430, 9051), (2586, 8505), (2835, 7758), (3017, 7290), (3402, 6465), (3645, 6034), (3879, 5670), (4310, 5103)]