21204210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11587}}^1$

素因数の和:11658

約数の個数: 32

約数和(自身を含む): 51728832

約数和(自身を除く): 30524622

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 305, 366, 610, 915, 1830, 11587, 23174, 34761, 57935, 69522, 115870, 173805, 347610, 706807, 1413614, 2120421, 3534035, 4240842, 7068070, 10602105, 21204210]

約数ペア:

[(1, 21204210), (2, 10602105), (3, 7068070), (5, 4240842), (6, 3534035), (10, 2120421), (15, 1413614), (30, 706807), (61, 347610), (122, 173805), (183, 115870), (305, 69522), (366, 57935), (610, 34761), (915, 23174), (1830, 11587)]