21333780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1013}}^1$

素因数の和:1047

約数の個数: 120

約数和(自身を含む): 72144072

約数和(自身を除く): 50810292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 260, 270, 324, 351, 390, 405, 468, 540, 585, 702, 780, 810, 1013, 1053, 1170, 1404, 1620, 1755, 2026, 2106, 2340, 3039, 3510, 4052, 4212, 5065, 5265, 6078, 7020, 9117, 10130, 10530, 12156, 13169, 15195, 18234, 20260, 21060, 26338, 27351, 30390, 36468, 39507, 45585, 52676, 54702, 60780, 65845, 79014, 82053, 91170, 109404, 118521, 131690, 136755, 158028, 164106, 182340, 197535, 237042, 263380, 273510, 328212, 355563, 395070, 410265, 474084, 547020, 592605, 711126, 790140, 820530, 1066689, 1185210, 1422252, 1641060, 1777815, 2133378, 2370420, 3555630, 4266756, 5333445, 7111260, 10666890, 21333780]

約数ペア:

[(1, 21333780), (2, 10666890), (3, 7111260), (4, 5333445), (5, 4266756), (6, 3555630), (9, 2370420), (10, 2133378), (12, 1777815), (13, 1641060), (15, 1422252), (18, 1185210), (20, 1066689), (26, 820530), (27, 790140), (30, 711126), (36, 592605), (39, 547020), (45, 474084), (52, 410265), (54, 395070), (60, 355563), (65, 328212), (78, 273510), (81, 263380), (90, 237042), (108, 197535), (117, 182340), (130, 164106), (135, 158028), (156, 136755), (162, 131690), (180, 118521), (195, 109404), (234, 91170), (260, 82053), (270, 79014), (324, 65845), (351, 60780), (390, 54702), (405, 52676), (468, 45585), (540, 39507), (585, 36468), (702, 30390), (780, 27351), (810, 26338), (1013, 21060), (1053, 20260), (1170, 18234), (1404, 15195), (1620, 13169), (1755, 12156), (2026, 10530), (2106, 10130), (2340, 9117), (3039, 7020), (3510, 6078), (4052, 5265), (4212, 5065)]