21209032

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4339}}^1$

素因数の和:4405

約数の個数: 32

約数和(自身を含む): 43747200

約数和(自身を除く): 22538168

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4339, 4888, 8678, 17356, 34712, 56407, 112814, 203933, 225628, 407866, 451256, 815732, 1631464, 2651129, 5302258, 10604516, 21209032]

約数ペア:

[(1, 21209032), (2, 10604516), (4, 5302258), (8, 2651129), (13, 1631464), (26, 815732), (47, 451256), (52, 407866), (94, 225628), (104, 203933), (188, 112814), (376, 56407), (611, 34712), (1222, 17356), (2444, 8678), (4339, 4888)]