21370284

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:548

約数の個数: 96

約数和(自身を含む): 61716480

約数和(自身を除く): 40346196

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 31, 36, 39, 52, 54, 62, 78, 93, 108, 117, 124, 156, 186, 234, 279, 351, 372, 403, 468, 491, 558, 702, 806, 837, 982, 1116, 1209, 1404, 1473, 1612, 1674, 1964, 2418, 2946, 3348, 3627, 4419, 4836, 5892, 6383, 7254, 8838, 10881, 12766, 13257, 14508, 15221, 17676, 19149, 21762, 25532, 26514, 30442, 38298, 43524, 45663, 53028, 57447, 60884, 76596, 91326, 114894, 136989, 172341, 182652, 197873, 229788, 273978, 344682, 395746, 410967, 547956, 593619, 689364, 791492, 821934, 1187238, 1643868, 1780857, 2374476, 3561714, 5342571, 7123428, 10685142, 21370284]

約数ペア:

[(1, 21370284), (2, 10685142), (3, 7123428), (4, 5342571), (6, 3561714), (9, 2374476), (12, 1780857), (13, 1643868), (18, 1187238), (26, 821934), (27, 791492), (31, 689364), (36, 593619), (39, 547956), (52, 410967), (54, 395746), (62, 344682), (78, 273978), (93, 229788), (108, 197873), (117, 182652), (124, 172341), (156, 136989), (186, 114894), (234, 91326), (279, 76596), (351, 60884), (372, 57447), (403, 53028), (468, 45663), (491, 43524), (558, 38298), (702, 30442), (806, 26514), (837, 25532), (982, 21762), (1116, 19149), (1209, 17676), (1404, 15221), (1473, 14508), (1612, 13257), (1674, 12766), (1964, 10881), (2418, 8838), (2946, 7254), (3348, 6383), (3627, 5892), (4419, 4836)]