21692145

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1061}}^1$

素因数の和:1145

約数の個数: 32

約数和(自身を含む): 36702720

約数和(自身を除く): 15010575

約数列:

[1, 3, 5, 15, 29, 47, 87, 141, 145, 235, 435, 705, 1061, 1363, 3183, 4089, 5305, 6815, 15915, 20445, 30769, 49867, 92307, 149601, 153845, 249335, 461535, 748005, 1446143, 4338429, 7230715, 21692145]

約数ペア:

[(1, 21692145), (3, 7230715), (5, 4338429), (15, 1446143), (29, 748005), (47, 461535), (87, 249335), (141, 153845), (145, 149601), (235, 92307), (435, 49867), (705, 30769), (1061, 20445), (1363, 15915), (3183, 6815), (4089, 5305)]