21364455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10709}}^1$

素因数の和:10743

約数の個数: 32

約数和(自身を含む): 41126400

約数和(自身を除く): 19761945

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10709, 32127, 53545, 74963, 160635, 203471, 224889, 374815, 610413, 1017355, 1124445, 1424297, 3052065, 4272891, 7121485, 21364455]

約数ペア:

[(1, 21364455), (3, 7121485), (5, 4272891), (7, 3052065), (15, 1424297), (19, 1124445), (21, 1017355), (35, 610413), (57, 374815), (95, 224889), (105, 203471), (133, 160635), (285, 74963), (399, 53545), (665, 32127), (1995, 10709)]