19318977

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 28784808

約数和(自身を除く): 9465831

約数列:

[1, 3, 9, 53, 101, 159, 303, 401, 477, 909, 1203, 3609, 5353, 16059, 21253, 40501, 48177, 63759, 121503, 191277, 364509, 2146553, 6439659, 19318977]

約数ペア:

[(1, 19318977), (3, 6439659), (9, 2146553), (53, 364509), (101, 191277), (159, 121503), (303, 63759), (401, 48177), (477, 40501), (909, 21253), (1203, 16059), (3609, 5353)]