21997794

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{40289}}^1$

素因数の和:40314

約数の個数: 32

約数和(自身を含む): 54149760

約数和(自身を除く): 32151966

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273, 546, 40289, 80578, 120867, 241734, 282023, 523757, 564046, 846069, 1047514, 1571271, 1692138, 3142542, 3666299, 7332598, 10998897, 21997794]

約数ペア:

[(1, 21997794), (2, 10998897), (3, 7332598), (6, 3666299), (7, 3142542), (13, 1692138), (14, 1571271), (21, 1047514), (26, 846069), (39, 564046), (42, 523757), (78, 282023), (91, 241734), (182, 120867), (273, 80578), (546, 40289)]