21954405

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 19517595

約数列:

[1, 3, 5, 11, 15, 19, 33, 47, 55, 57, 95, 141, 149, 165, 209, 235, 285, 447, 517, 627, 705, 745, 893, 1045, 1551, 1639, 2235, 2585, 2679, 2831, 3135, 4465, 4917, 7003, 7755, 8195, 8493, 9823, 13395, 14155, 21009, 24585, 29469, 31141, 35015, 42465, 49115, 77033, 93423, 105045, 133057, 147345, 155705, 231099, 385165, 399171, 467115, 665285, 1155495, 1463627, 1995855, 4390881, 7318135, 21954405]

約数ペア:

[(1, 21954405), (3, 7318135), (5, 4390881), (11, 1995855), (15, 1463627), (19, 1155495), (33, 665285), (47, 467115), (55, 399171), (57, 385165), (95, 231099), (141, 155705), (149, 147345), (165, 133057), (209, 105045), (235, 93423), (285, 77033), (447, 49115), (517, 42465), (627, 35015), (705, 31141), (745, 29469), (893, 24585), (1045, 21009), (1551, 14155), (1639, 13395), (2235, 9823), (2585, 8493), (2679, 8195), (2831, 7755), (3135, 7003), (4465, 4917)]