21009976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{751}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 42638400

約数和(自身を除く): 21628424

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 269, 538, 751, 1076, 1502, 2152, 3004, 3497, 6008, 6994, 9763, 13988, 19526, 27976, 39052, 78104, 202019, 404038, 808076, 1616152, 2626247, 5252494, 10504988, 21009976]

約数ペア:

[(1, 21009976), (2, 10504988), (4, 5252494), (8, 2626247), (13, 1616152), (26, 808076), (52, 404038), (104, 202019), (269, 78104), (538, 39052), (751, 27976), (1076, 19526), (1502, 13988), (2152, 9763), (3004, 6994), (3497, 6008)]