21264390

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11251}}^1$

素因数の和:11274

約数の個数: 64

約数和(自身を含む): 64811520

約数和(自身を除く): 43547130

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11251, 22502, 33753, 56255, 67506, 78757, 101259, 112510, 157514, 168765, 202518, 236271, 303777, 337530, 393785, 472542, 506295, 607554, 708813, 787570, 1012590, 1181355, 1417626, 1518885, 2126439, 2362710, 3037770, 3544065, 4252878, 7088130, 10632195, 21264390]

約数ペア:

[(1, 21264390), (2, 10632195), (3, 7088130), (5, 4252878), (6, 3544065), (7, 3037770), (9, 2362710), (10, 2126439), (14, 1518885), (15, 1417626), (18, 1181355), (21, 1012590), (27, 787570), (30, 708813), (35, 607554), (42, 506295), (45, 472542), (54, 393785), (63, 337530), (70, 303777), (90, 236271), (105, 202518), (126, 168765), (135, 157514), (189, 112510), (210, 101259), (270, 78757), (315, 67506), (378, 56255), (630, 33753), (945, 22502), (1890, 11251)]