21645216

素因数分解:

$2^5\times 3^2\times {\mathrm{17}}^1\times {\mathrm{4421}}^1$

素因数の和:4454

約数の個数: 72

約数和(自身を含む): 65189124

約数和(自身を除く): 43543908

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 32, 34, 36, 48, 51, 68, 72, 96, 102, 136, 144, 153, 204, 272, 288, 306, 408, 544, 612, 816, 1224, 1632, 2448, 4421, 4896, 8842, 13263, 17684, 26526, 35368, 39789, 53052, 70736, 75157, 79578, 106104, 141472, 150314, 159156, 212208, 225471, 300628, 318312, 424416, 450942, 601256, 636624, 676413, 901884, 1202512, 1273248, 1352826, 1803768, 2405024, 2705652, 3607536, 5411304, 7215072, 10822608, 21645216]

約数ペア:

[(1, 21645216), (2, 10822608), (3, 7215072), (4, 5411304), (6, 3607536), (8, 2705652), (9, 2405024), (12, 1803768), (16, 1352826), (17, 1273248), (18, 1202512), (24, 901884), (32, 676413), (34, 636624), (36, 601256), (48, 450942), (51, 424416), (68, 318312), (72, 300628), (96, 225471), (102, 212208), (136, 159156), (144, 150314), (153, 141472), (204, 106104), (272, 79578), (288, 75157), (306, 70736), (408, 53052), (544, 39789), (612, 35368), (816, 26526), (1224, 17684), (1632, 13263), (2448, 8842), (4421, 4896)]