21501320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23371}}^1$

素因数の和:23405

約数の個数: 32

約数和(自身を含む): 50483520

約数和(自身を除く): 28982200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23371, 46742, 93484, 116855, 186968, 233710, 467420, 537533, 934840, 1075066, 2150132, 2687665, 4300264, 5375330, 10750660, 21501320]

約数ペア:

[(1, 21501320), (2, 10750660), (4, 5375330), (5, 4300264), (8, 2687665), (10, 2150132), (20, 1075066), (23, 934840), (40, 537533), (46, 467420), (92, 233710), (115, 186968), (184, 116855), (230, 93484), (460, 46742), (920, 23371)]