21305160

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19727}}^1$

素因数の和:19747

約数の個数: 64

約数和(自身を含む): 71020800

約数和(自身を除く): 49715640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19727, 39454, 59181, 78908, 98635, 118362, 157816, 177543, 197270, 236724, 295905, 355086, 394540, 473448, 532629, 591810, 710172, 789080, 887715, 1065258, 1183620, 1420344, 1775430, 2130516, 2367240, 2663145, 3550860, 4261032, 5326290, 7101720, 10652580, 21305160]

約数ペア:

[(1, 21305160), (2, 10652580), (3, 7101720), (4, 5326290), (5, 4261032), (6, 3550860), (8, 2663145), (9, 2367240), (10, 2130516), (12, 1775430), (15, 1420344), (18, 1183620), (20, 1065258), (24, 887715), (27, 789080), (30, 710172), (36, 591810), (40, 532629), (45, 473448), (54, 394540), (60, 355086), (72, 295905), (90, 236724), (108, 197270), (120, 177543), (135, 157816), (180, 118362), (216, 98635), (270, 78908), (360, 59181), (540, 39454), (1080, 19727)]