21158930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3463}}^1$

素因数の和:3530

約数の個数: 32

約数和(自身を含む): 41900544

約数和(自身を除く): 20741614

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 235, 470, 611, 1222, 3055, 3463, 6110, 6926, 17315, 34630, 45019, 90038, 162761, 225095, 325522, 450190, 813805, 1627610, 2115893, 4231786, 10579465, 21158930]

約数ペア:

[(1, 21158930), (2, 10579465), (5, 4231786), (10, 2115893), (13, 1627610), (26, 813805), (47, 450190), (65, 325522), (94, 225095), (130, 162761), (235, 90038), (470, 45019), (611, 34630), (1222, 17315), (3055, 6926), (3463, 6110)]