21329640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{331}}^1$

素因数の和:527

約数の個数: 96

約数和(自身を含む): 69919200

約数和(自身を除く): 48589560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 179, 180, 331, 358, 360, 537, 662, 716, 895, 993, 1074, 1324, 1432, 1611, 1655, 1790, 1986, 2148, 2648, 2685, 2979, 3222, 3310, 3580, 3972, 4296, 4965, 5370, 5958, 6444, 6620, 7160, 7944, 8055, 9930, 10740, 11916, 12888, 13240, 14895, 16110, 19860, 21480, 23832, 29790, 32220, 39720, 59249, 59580, 64440, 118498, 119160, 177747, 236996, 296245, 355494, 473992, 533241, 592490, 710988, 888735, 1066482, 1184980, 1421976, 1777470, 2132964, 2369960, 2666205, 3554940, 4265928, 5332410, 7109880, 10664820, 21329640]

約数ペア:

[(1, 21329640), (2, 10664820), (3, 7109880), (4, 5332410), (5, 4265928), (6, 3554940), (8, 2666205), (9, 2369960), (10, 2132964), (12, 1777470), (15, 1421976), (18, 1184980), (20, 1066482), (24, 888735), (30, 710988), (36, 592490), (40, 533241), (45, 473992), (60, 355494), (72, 296245), (90, 236996), (120, 177747), (179, 119160), (180, 118498), (331, 64440), (358, 59580), (360, 59249), (537, 39720), (662, 32220), (716, 29790), (895, 23832), (993, 21480), (1074, 19860), (1324, 16110), (1432, 14895), (1611, 13240), (1655, 12888), (1790, 11916), (1986, 10740), (2148, 9930), (2648, 8055), (2685, 7944), (2979, 7160), (3222, 6620), (3310, 6444), (3580, 5958), (3972, 5370), (4296, 4965)]