21241710

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11239}}^1$

素因数の和:11262

約数の個数: 64

約数和(自身を含む): 64742400

約数和(自身を除く): 43500690

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, 11239, 22478, 33717, 56195, 67434, 78673, 101151, 112390, 157346, 168585, 202302, 236019, 303453, 337170, 393365, 472038, 505755, 606906, 708057, 786730, 1011510, 1180095, 1416114, 1517265, 2124171, 2360190, 3034530, 3540285, 4248342, 7080570, 10620855, 21241710]

約数ペア:

[(1, 21241710), (2, 10620855), (3, 7080570), (5, 4248342), (6, 3540285), (7, 3034530), (9, 2360190), (10, 2124171), (14, 1517265), (15, 1416114), (18, 1180095), (21, 1011510), (27, 786730), (30, 708057), (35, 606906), (42, 505755), (45, 472038), (54, 393365), (63, 337170), (70, 303453), (90, 236019), (105, 202302), (126, 168585), (135, 157346), (189, 112390), (210, 101151), (270, 78673), (315, 67434), (378, 56195), (630, 33717), (945, 22478), (1890, 11239)]