21319140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18701}}^1$

素因数の和:18732

約数の個数: 48

約数和(自身を含む): 62838720

約数和(自身を除く): 41519580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18701, 37402, 56103, 74804, 93505, 112206, 187010, 224412, 280515, 355319, 374020, 561030, 710638, 1065957, 1122060, 1421276, 1776595, 2131914, 3553190, 4263828, 5329785, 7106380, 10659570, 21319140]

約数ペア:

[(1, 21319140), (2, 10659570), (3, 7106380), (4, 5329785), (5, 4263828), (6, 3553190), (10, 2131914), (12, 1776595), (15, 1421276), (19, 1122060), (20, 1065957), (30, 710638), (38, 561030), (57, 374020), (60, 355319), (76, 280515), (95, 224412), (114, 187010), (190, 112206), (228, 93505), (285, 74804), (380, 56103), (570, 37402), (1140, 18701)]