21434220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:253

約数の個数: 120

約数和(自身を含む): 68424048

約数和(自身を除く): 46989828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 101, 108, 131, 135, 162, 180, 202, 262, 270, 303, 324, 393, 404, 405, 505, 524, 540, 606, 655, 786, 810, 909, 1010, 1179, 1212, 1310, 1515, 1572, 1620, 1818, 1965, 2020, 2358, 2620, 2727, 3030, 3537, 3636, 3930, 4545, 4716, 5454, 5895, 6060, 7074, 7860, 8181, 9090, 10611, 10908, 11790, 13231, 13635, 14148, 16362, 17685, 18180, 21222, 23580, 26462, 27270, 32724, 35370, 39693, 40905, 42444, 52924, 53055, 54540, 66155, 70740, 79386, 81810, 106110, 119079, 132310, 158772, 163620, 198465, 212220, 238158, 264620, 357237, 396930, 476316, 595395, 714474, 793860, 1071711, 1190790, 1428948, 1786185, 2143422, 2381580, 3572370, 4286844, 5358555, 7144740, 10717110, 21434220]

約数ペア:

[(1, 21434220), (2, 10717110), (3, 7144740), (4, 5358555), (5, 4286844), (6, 3572370), (9, 2381580), (10, 2143422), (12, 1786185), (15, 1428948), (18, 1190790), (20, 1071711), (27, 793860), (30, 714474), (36, 595395), (45, 476316), (54, 396930), (60, 357237), (81, 264620), (90, 238158), (101, 212220), (108, 198465), (131, 163620), (135, 158772), (162, 132310), (180, 119079), (202, 106110), (262, 81810), (270, 79386), (303, 70740), (324, 66155), (393, 54540), (404, 53055), (405, 52924), (505, 42444), (524, 40905), (540, 39693), (606, 35370), (655, 32724), (786, 27270), (810, 26462), (909, 23580), (1010, 21222), (1179, 18180), (1212, 17685), (1310, 16362), (1515, 14148), (1572, 13635), (1620, 13231), (1818, 11790), (1965, 10908), (2020, 10611), (2358, 9090), (2620, 8181), (2727, 7860), (3030, 7074), (3537, 6060), (3636, 5895), (3930, 5454), (4545, 4716)]