21189180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18587}}^1$

素因数の和:18618

約数の個数: 48

約数和(自身を含む): 62455680

約数和(自身を除く): 41266500

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, 18587, 37174, 55761, 74348, 92935, 111522, 185870, 223044, 278805, 353153, 371740, 557610, 706306, 1059459, 1115220, 1412612, 1765765, 2118918, 3531530, 4237836, 5297295, 7063060, 10594590, 21189180]

約数ペア:

[(1, 21189180), (2, 10594590), (3, 7063060), (4, 5297295), (5, 4237836), (6, 3531530), (10, 2118918), (12, 1765765), (15, 1412612), (19, 1115220), (20, 1059459), (30, 706306), (38, 557610), (57, 371740), (60, 353153), (76, 278805), (95, 223044), (114, 185870), (190, 111522), (228, 92935), (285, 74348), (380, 55761), (570, 37174), (1140, 18587)]