21891840

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5701}}^1$

素因数の和:5725

約数の個数: 72

約数和(自身を含む): 69929328

約数和(自身を除く): 48037488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5701, 11402, 17103, 22804, 28505, 34206, 45608, 57010, 68412, 85515, 91216, 114020, 136824, 171030, 182432, 228040, 273648, 342060, 364864, 456080, 547296, 684120, 729728, 912160, 1094592, 1368240, 1459456, 1824320, 2189184, 2736480, 3648640, 4378368, 5472960, 7297280, 10945920, 21891840]

約数ペア:

[(1, 21891840), (2, 10945920), (3, 7297280), (4, 5472960), (5, 4378368), (6, 3648640), (8, 2736480), (10, 2189184), (12, 1824320), (15, 1459456), (16, 1368240), (20, 1094592), (24, 912160), (30, 729728), (32, 684120), (40, 547296), (48, 456080), (60, 364864), (64, 342060), (80, 273648), (96, 228040), (120, 182432), (128, 171030), (160, 136824), (192, 114020), (240, 91216), (256, 85515), (320, 68412), (384, 57010), (480, 45608), (640, 34206), (768, 28505), (960, 22804), (1280, 17103), (1920, 11402), (3840, 5701)]