21598984

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 45462060

約数和(自身を除く): 23863076

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 121, 212, 242, 421, 424, 484, 583, 842, 968, 1166, 1684, 2332, 3368, 4631, 4664, 6413, 9262, 12826, 18524, 22313, 25652, 37048, 44626, 50941, 51304, 89252, 101882, 178504, 203764, 245443, 407528, 490886, 981772, 1963544, 2699873, 5399746, 10799492, 21598984]

約数ペア:

[(1, 21598984), (2, 10799492), (4, 5399746), (8, 2699873), (11, 1963544), (22, 981772), (44, 490886), (53, 407528), (88, 245443), (106, 203764), (121, 178504), (212, 101882), (242, 89252), (421, 51304), (424, 50941), (484, 44626), (583, 37048), (842, 25652), (968, 22313), (1166, 18524), (1684, 12826), (2332, 9262), (3368, 6413), (4631, 4664)]