21768680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28643}}^1$

素因数の和:28673

約数の個数: 32

約数和(自身を含む): 51559200

約数和(自身を除く): 29790520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28643, 57286, 114572, 143215, 229144, 286430, 544217, 572860, 1088434, 1145720, 2176868, 2721085, 4353736, 5442170, 10884340, 21768680]

約数ペア:

[(1, 21768680), (2, 10884340), (4, 5442170), (5, 4353736), (8, 2721085), (10, 2176868), (19, 1145720), (20, 1088434), (38, 572860), (40, 544217), (76, 286430), (95, 229144), (152, 143215), (190, 114572), (380, 57286), (760, 28643)]