21318120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19739}}^1$

素因数の和:19759

約数の個数: 64

約数和(自身を含む): 71064000

約数和(自身を除く): 49745880

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, 19739, 39478, 59217, 78956, 98695, 118434, 157912, 177651, 197390, 236868, 296085, 355302, 394780, 473736, 532953, 592170, 710604, 789560, 888255, 1065906, 1184340, 1421208, 1776510, 2131812, 2368680, 2664765, 3553020, 4263624, 5329530, 7106040, 10659060, 21318120]

約数ペア:

[(1, 21318120), (2, 10659060), (3, 7106040), (4, 5329530), (5, 4263624), (6, 3553020), (8, 2664765), (9, 2368680), (10, 2131812), (12, 1776510), (15, 1421208), (18, 1184340), (20, 1065906), (24, 888255), (27, 789560), (30, 710604), (36, 592170), (40, 532953), (45, 473736), (54, 394780), (60, 355302), (72, 296085), (90, 236868), (108, 197390), (120, 177651), (135, 157912), (180, 118434), (216, 98695), (270, 78956), (360, 59217), (540, 39478), (1080, 19739)]