21452760

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8513}}^1$

素因数の和:8537

約数の個数: 96

約数和(自身を含む): 79691040

約数和(自身を除く): 58238280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8513, 17026, 25539, 34052, 42565, 51078, 59591, 68104, 76617, 85130, 102156, 119182, 127695, 153234, 170260, 178773, 204312, 238364, 255390, 297955, 306468, 340520, 357546, 383085, 476728, 510780, 536319, 595910, 612936, 715092, 766170, 893865, 1021560, 1072638, 1191820, 1430184, 1532340, 1787730, 2145276, 2383640, 2681595, 3064680, 3575460, 4290552, 5363190, 7150920, 10726380, 21452760]

約数ペア:

[(1, 21452760), (2, 10726380), (3, 7150920), (4, 5363190), (5, 4290552), (6, 3575460), (7, 3064680), (8, 2681595), (9, 2383640), (10, 2145276), (12, 1787730), (14, 1532340), (15, 1430184), (18, 1191820), (20, 1072638), (21, 1021560), (24, 893865), (28, 766170), (30, 715092), (35, 612936), (36, 595910), (40, 536319), (42, 510780), (45, 476728), (56, 383085), (60, 357546), (63, 340520), (70, 306468), (72, 297955), (84, 255390), (90, 238364), (105, 204312), (120, 178773), (126, 170260), (140, 153234), (168, 127695), (180, 119182), (210, 102156), (252, 85130), (280, 76617), (315, 68104), (360, 59591), (420, 51078), (504, 42565), (630, 34052), (840, 25539), (1260, 17026), (2520, 8513)]