21534630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55217}}^1$

素因数の和:55240

約数の個数: 32

約数和(自身を含む): 55659744

約数和(自身を除く): 34125114

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55217, 110434, 165651, 276085, 331302, 552170, 717821, 828255, 1435642, 1656510, 2153463, 3589105, 4306926, 7178210, 10767315, 21534630]

約数ペア:

[(1, 21534630), (2, 10767315), (3, 7178210), (5, 4306926), (6, 3589105), (10, 2153463), (13, 1656510), (15, 1435642), (26, 828255), (30, 717821), (39, 552170), (65, 331302), (78, 276085), (130, 165651), (195, 110434), (390, 55217)]