21901320

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2897}}^1$

素因数の和:2924

約数の個数: 128

約数和(自身を含む): 83462400

約数和(自身を除く): 61561080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2897, 3780, 5794, 7560, 8691, 11588, 14485, 17382, 20279, 23176, 26073, 28970, 34764, 40558, 43455, 52146, 57940, 60837, 69528, 78219, 81116, 86910, 101395, 104292, 115880, 121674, 130365, 156438, 162232, 173820, 182511, 202790, 208584, 243348, 260730, 304185, 312876, 347640, 365022, 391095, 405580, 486696, 521460, 547533, 608370, 625752, 730044, 782190, 811160, 912555, 1042920, 1095066, 1216740, 1460088, 1564380, 1825110, 2190132, 2433480, 2737665, 3128760, 3650220, 4380264, 5475330, 7300440, 10950660, 21901320]

約数ペア:

[(1, 21901320), (2, 10950660), (3, 7300440), (4, 5475330), (5, 4380264), (6, 3650220), (7, 3128760), (8, 2737665), (9, 2433480), (10, 2190132), (12, 1825110), (14, 1564380), (15, 1460088), (18, 1216740), (20, 1095066), (21, 1042920), (24, 912555), (27, 811160), (28, 782190), (30, 730044), (35, 625752), (36, 608370), (40, 547533), (42, 521460), (45, 486696), (54, 405580), (56, 391095), (60, 365022), (63, 347640), (70, 312876), (72, 304185), (84, 260730), (90, 243348), (105, 208584), (108, 202790), (120, 182511), (126, 173820), (135, 162232), (140, 156438), (168, 130365), (180, 121674), (189, 115880), (210, 104292), (216, 101395), (252, 86910), (270, 81116), (280, 78219), (315, 69528), (360, 60837), (378, 57940), (420, 52146), (504, 43455), (540, 40558), (630, 34764), (756, 28970), (840, 26073), (945, 23176), (1080, 20279), (1260, 17382), (1512, 14485), (1890, 11588), (2520, 8691), (2897, 7560), (3780, 5794)]