21984690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8053}}^1$

素因数の和:8083

約数の個数: 64

約数和(自身を含む): 64947456

約数和(自身を除く): 42962766

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 8053, 16106, 24159, 40265, 48318, 56371, 80530, 104689, 112742, 120795, 169113, 209378, 241590, 281855, 314067, 338226, 523445, 563710, 628134, 732823, 845565, 1046890, 1465646, 1570335, 1691130, 2198469, 3140670, 3664115, 4396938, 7328230, 10992345, 21984690]

約数ペア:

[(1, 21984690), (2, 10992345), (3, 7328230), (5, 4396938), (6, 3664115), (7, 3140670), (10, 2198469), (13, 1691130), (14, 1570335), (15, 1465646), (21, 1046890), (26, 845565), (30, 732823), (35, 628134), (39, 563710), (42, 523445), (65, 338226), (70, 314067), (78, 281855), (91, 241590), (105, 209378), (130, 169113), (182, 120795), (195, 112742), (210, 104689), (273, 80530), (390, 56371), (455, 48318), (546, 40265), (910, 24159), (1365, 16106), (2730, 8053)]