19681365

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1181}}^1$

素因数の和:1301

約数の個数: 32

約数和(自身を含む): 34722432

約数和(自身を除く): 15041067

約数列:

[1, 3, 5, 11, 15, 33, 55, 101, 165, 303, 505, 1111, 1181, 1515, 3333, 3543, 5555, 5905, 12991, 16665, 17715, 38973, 64955, 119281, 194865, 357843, 596405, 1312091, 1789215, 3936273, 6560455, 19681365]

約数ペア:

[(1, 19681365), (3, 6560455), (5, 3936273), (11, 1789215), (15, 1312091), (33, 596405), (55, 357843), (101, 194865), (165, 119281), (303, 64955), (505, 38973), (1111, 17715), (1181, 16665), (1515, 12991), (3333, 5905), (3543, 5555)]