21613515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18713}}^1$

素因数の和:18739

約数の個数: 32

約数和(自身を含む): 43117056

約数和(自身を除く): 21503541

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 18713, 56139, 93565, 130991, 205843, 280695, 392973, 617529, 654955, 1029215, 1440901, 1964865, 3087645, 4322703, 7204505, 21613515]

約数ペア:

[(1, 21613515), (3, 7204505), (5, 4322703), (7, 3087645), (11, 1964865), (15, 1440901), (21, 1029215), (33, 654955), (35, 617529), (55, 392973), (77, 280695), (105, 205843), (165, 130991), (231, 93565), (385, 56139), (1155, 18713)]